Irbesartan Teva
Generic Angiotensin II Receptor Blocker (ARB) for Hypertension & Diabetic Nephropathy
Irbesartan Teva contains the active ingredient irbesartan, an angiotensin II receptor blocker (ARB) used to treat high blood pressure and to protect the kidneys in patients with type 2 diabetes. As a generic medicine manufactured by Teva Pharmaceutical Industries, it contains the same active substance as the original brand-name product Aprovel and works in exactly the same way. Irbesartan blocks the action of angiotensin II, a substance that causes blood vessels to constrict, thereby relaxing the vessels and lowering blood pressure. Irbesartan Teva is taken once daily as a tablet and is available in 75 mg, 150 mg, and 300 mg strengths.
Quick Facts
Key Takeaways
- Irbesartan Teva is a generic angiotensin II receptor blocker (ARB) that contains irbesartan, the same active substance as Aprovel, and is bioequivalent to the original brand-name product.
- It is prescribed to treat essential hypertension in adults and to slow the progression of kidney disease in patients with type 2 diabetes and high blood pressure.
- The usual starting dose is 150 mg once daily, which may be increased to 300 mg depending on blood pressure response; maximum effect is typically reached within 4–6 weeks.
- Irbesartan Teva must not be used during pregnancy (especially the last 6 months), with aliskiren in diabetic patients, or in combination with ACE inhibitors in patients with diabetic kidney disease.
- Common side effects include dizziness, nausea, and fatigue; regular monitoring of kidney function and potassium levels is recommended during treatment.
What Is Irbesartan Teva and What Is It Used For?
Irbesartan Teva belongs to a class of medicines called angiotensin II receptor antagonists (also known as ARBs or sartans). The active ingredient, irbesartan, is identical to that found in the original brand-name product Aprovel, first developed by Sanofi. As a generic medicine approved by the European Medicines Agency (EMA), Irbesartan Teva has been rigorously tested to ensure it meets the same standards of quality, safety, and efficacy as the original. This means patients can be confident that switching between brand-name irbesartan products and Irbesartan Teva will produce the same therapeutic outcomes.
Angiotensin II is a naturally occurring peptide hormone in the body that plays a central role in the renin-angiotensin-aldosterone system (RAAS), the hormonal cascade responsible for regulating blood pressure and fluid balance. When angiotensin II binds to specific receptors known as AT1 receptors on the walls of blood vessels, it causes powerful vasoconstriction — a tightening of the vessels that raises blood pressure. Irbesartan works by selectively blocking the binding of angiotensin II to these AT1 receptors. By preventing this interaction, the blood vessels are able to relax and dilate, which lowers blood pressure effectively and sustainably.
Beyond its direct effect on blood vessels, irbesartan also reduces the secretion of aldosterone, a hormone produced by the adrenal glands that promotes the retention of sodium and water by the kidneys. Excess aldosterone leads to increased blood volume and consequently higher blood pressure. By decreasing aldosterone levels, Irbesartan Teva helps reduce fluid retention and provides an additional mechanism for lowering blood pressure. This dual action — vasodilation and reduced fluid retention — makes irbesartan particularly effective in long-term hypertension management.
Irbesartan Teva is approved for two primary clinical indications. The first is the treatment of essential hypertension (high blood pressure with no identifiable underlying cause), which the World Health Organization estimates affects approximately 1.3 billion adults worldwide. Uncontrolled hypertension is a leading modifiable risk factor for stroke, myocardial infarction (heart attack), heart failure, chronic kidney disease, and vascular dementia. Effective blood pressure control with medicines like irbesartan significantly reduces the risk of these life-threatening cardiovascular events. The European Society of Cardiology (ESC) and the American Heart Association (AHA) both recommend ARBs as a first-line treatment option for hypertension in many patient populations.
The second approved indication is renal (kidney) protection in patients with hypertension and type 2 diabetes who have laboratory evidence of impaired kidney function, known as diabetic nephropathy. The landmark IDNT (Irbesartan Diabetic Nephropathy Trial), published in the New England Journal of Medicine, demonstrated that irbesartan 300 mg once daily significantly reduced the risk of doubling of serum creatinine, progression to end-stage renal disease (ESRD), or death from any cause, compared with placebo or the calcium channel blocker amlodipine. This nephroprotective benefit is partly independent of irbesartan’s blood pressure-lowering effect and is related to the reduction of intraglomerular pressure and the decrease in proteinuria (protein in the urine), a key marker of kidney damage.
Following oral administration, irbesartan is rapidly and well absorbed from the gastrointestinal tract, reaching peak plasma concentrations within approximately 1.5 to 2 hours. Its oral bioavailability is approximately 60 to 80 percent and is not significantly affected by food, so the tablet can be taken with or without meals. Irbesartan is extensively metabolised in the liver, primarily by the cytochrome P450 enzyme CYP2C9 and to a lesser extent by glucuronidation. The elimination half-life ranges from 11 to 15 hours, supporting convenient once-daily dosing. Steady-state plasma concentrations are typically achieved within 3 days of initiating therapy, and the maximum antihypertensive effect is usually seen within 4 to 6 weeks of continued treatment.
What Should You Know Before Taking Irbesartan Teva?
Before starting any new medication, it is essential to understand the circumstances under which it may be unsafe to use. Irbesartan Teva, like all prescription medicines, has specific contraindications, warnings, and precautions that must be observed. Providing your doctor with a complete medical history and a full list of all medications you are taking — including over-the-counter products, herbal supplements, and vitamins — is critical for safe and effective treatment.
Contraindications
There are specific situations in which Irbesartan Teva must not be taken. These absolute contraindications are based on clinical evidence that use in these circumstances poses an unacceptable risk of serious harm:
- You are allergic to irbesartan or any of the other ingredients in the tablets (including lactose monohydrate, microcrystalline cellulose, croscarmellose sodium, hypromellose, silicon dioxide, magnesium stearate, titanium dioxide, macrogol, and iron oxide pigments).
- You are more than 3 months pregnant. Irbesartan Teva should also be avoided during early pregnancy whenever possible.
- You have diabetes or impaired kidney function and are being treated with a blood pressure-lowering medicine containing aliskiren (a direct renin inhibitor).
Warnings and Precautions
Before starting treatment with Irbesartan Teva, it is important to discuss your complete medical history with your healthcare provider. Several conditions and situations require special attention and careful monitoring during treatment:
If you experience severe vomiting or diarrhea, you should inform your doctor promptly. These conditions can lead to significant dehydration and a reduction in circulating blood volume, which may cause your blood pressure to fall dangerously low when combined with Irbesartan Teva. Your doctor may need to temporarily reduce your dose, recommend increased fluid intake, or discontinue the medication until you have fully recovered from the illness.
Patients with kidney problems require careful monitoring during treatment with irbesartan. Your doctor will regularly check your kidney function through blood tests measuring serum creatinine and estimated glomerular filtration rate (eGFR). These tests help detect any deterioration in kidney function that may require a dose adjustment or change in treatment strategy. In patients with pre-existing severe renal impairment or those undergoing dialysis, a lower starting dose may be prescribed.
If you have heart problems, including heart failure, coronary artery disease, or a history of heart attack, your doctor needs to assess the benefit-risk balance before prescribing Irbesartan Teva. While ARBs are generally well-tolerated in patients with cardiovascular disease and may even offer protective benefits, careful dose titration and close blood pressure monitoring are important, particularly during the initial treatment period, to avoid hypotension (excessively low blood pressure).
Patients receiving Irbesartan Teva for diabetic kidney disease should expect regular blood tests to monitor electrolyte levels, particularly potassium. Irbesartan can cause blood potassium levels to rise (hyperkalemia), especially in patients with already compromised kidney function. Elevated potassium is a serious condition that can cause dangerous heart rhythm disturbances (cardiac arrhythmias), including potentially fatal ventricular fibrillation, if left undetected and untreated.
If you develop signs of low blood sugar (hypoglycemia) — including sweating, weakness, hunger, dizziness, trembling, headache, flushing, pallor, numbness, or a rapid pounding heartbeat — consult your doctor. This is particularly important if you are also taking diabetes medications, as irbesartan may interact with certain oral hypoglycemic agents such as repaglinide.
If you are scheduled for surgery or anesthesia, inform your surgeon and anesthesiologist that you are taking Irbesartan Teva. ARBs can interact with certain anesthetic agents and may increase the risk of intraoperative hypotension (a significant drop in blood pressure during surgery). Your healthcare team will determine the best approach, which may involve continuing or temporarily discontinuing the medication before the procedure.
Your doctor should regularly monitor your kidney function, blood pressure, and electrolyte levels (particularly potassium) throughout your treatment with Irbesartan Teva. If you experience persistent abdominal pain, nausea, vomiting, or diarrhea, consult your doctor. Do not stop taking your medication without medical guidance, as abrupt discontinuation can lead to a rebound increase in blood pressure.
Dual Blockade of the Renin-Angiotensin System
Irbesartan Teva should not be combined with an ACE inhibitor (such as enalapril, lisinopril, or ramipril), particularly in patients with diabetic kidney disease. This combination, known as dual blockade of the renin-angiotensin system, has been shown in large clinical trials — including the ONTARGET study — to increase the risk of hypotension, hyperkalemia, and acute kidney injury without providing additional cardiovascular or renal benefits. Similarly, the combination of Irbesartan Teva with aliskiren is contraindicated in patients with diabetes or moderate-to-severe renal impairment (eGFR < 60 mL/min/1.73 m²).
Pregnancy and Breastfeeding
Pregnancy: If you suspect you are pregnant or become pregnant during treatment, contact your doctor immediately. Your doctor will typically advise you to stop taking Irbesartan Teva before becoming pregnant, or as soon as you know you are pregnant, and will recommend a safer alternative. Irbesartan should be avoided during early pregnancy and must not be used during the second and third trimesters (months 4 to 9), as it can cause serious and potentially irreversible harm to the developing fetus. These risks include fetal kidney damage, reduced amniotic fluid (oligohydramnios), skull bone ossification defects, limb contractures, lung hypoplasia, and fetal or neonatal death.
Breastfeeding: Inform your doctor if you are breastfeeding or plan to breastfeed. Irbesartan Teva is not recommended during breastfeeding, as it is not known whether irbesartan or its metabolites pass into human breast milk. Your doctor may choose an alternative antihypertensive treatment that is compatible with breastfeeding, particularly if the infant is a newborn or was born prematurely.
Children and Adolescents
Irbesartan Teva should not be used in children and adolescents under 18 years of age. The safety and efficacy of irbesartan have not been sufficiently established in the pediatric population, and the potential risks may outweigh any benefits. If a child accidentally swallows Irbesartan Teva tablets, seek medical attention immediately, as even a small dose can cause significant hypotension in a young child.
Driving and Using Machines
Irbesartan Teva is unlikely to significantly affect your ability to drive or operate machinery under normal circumstances. However, dizziness, lightheadedness, or fatigue may occasionally occur during treatment, particularly when first starting the medication, after a dose increase, or in combination with other blood pressure-lowering agents. If you experience these symptoms, avoid driving or operating heavy machinery until the effects subside, and discuss with your doctor whether a dose adjustment may be appropriate.
Important Information About Ingredients
Irbesartan Teva tablets contain lactose monohydrate. If you have been told by your doctor that you have an intolerance to certain sugars (such as lactose), consult your doctor before taking this medicine. Patients with rare hereditary conditions such as galactose intolerance, total lactase deficiency, or glucose-galactose malabsorption should not take this medicine. The tablets also contain sodium, but less than 1 mmol (23 mg) per tablet, meaning they are essentially sodium-free.
How Does Irbesartan Teva Interact with Other Drugs?
Drug interactions can significantly alter the way Irbesartan Teva works in your body or increase the risk of serious side effects. It is essential to tell your doctor, pharmacist, or other healthcare provider about all medications you are currently taking, have recently taken, or might take in the near future. This includes prescription medicines, over-the-counter drugs, herbal remedies, and dietary supplements. Your doctor may need to adjust your dosage, change one of your medications, or schedule more frequent monitoring to ensure safe and effective treatment.
The risk of drug interactions with irbesartan is related to its pharmacological mechanism. Because irbesartan blocks the renin-angiotensin-aldosterone system (RAAS), combining it with other drugs that also affect this system — such as ACE inhibitors or aliskiren — can lead to an exaggerated effect, increasing the risk of hypotension, kidney damage, and elevated potassium levels. Similarly, drugs that independently raise potassium levels or reduce kidney function can amplify the side effects of irbesartan.
Major Interactions
The following interactions are clinically significant and may require dose adjustments, close monitoring, or avoidance of the combination altogether:
| Interacting Drug | Effect | Recommendation |
|---|---|---|
| ACE Inhibitors (enalapril, lisinopril, ramipril) | Increased risk of hypotension, hyperkalemia, and kidney injury (dual RAAS blockade) | Avoid combination, especially in diabetic kidney disease |
| Aliskiren | Increased risk of hypotension, hyperkalemia, and renal impairment | Contraindicated in patients with diabetes or renal impairment |
| Potassium supplements or potassium-containing salt substitutes | Dangerously elevated potassium levels (hyperkalemia) | Use with caution; regular blood tests required |
| Potassium-sparing diuretics (spironolactone, eplerenone, amiloride, triamterene) | Increased risk of hyperkalemia | Monitor potassium levels closely if combination is necessary |
| Lithium | Increased lithium blood levels, risk of lithium toxicity | Monitor lithium levels; dose adjustment may be needed |
Minor Interactions
The following interactions are generally less severe but may still affect treatment outcomes. Discuss these with your healthcare provider if you are taking or plan to take any of the following:
| Interacting Drug | Effect | Recommendation |
|---|---|---|
| NSAIDs (ibuprofen, naproxen, diclofenac, celecoxib) | May reduce the blood pressure-lowering effect of irbesartan; increased risk of kidney impairment and fluid retention | Use shortest duration and lowest dose possible; monitor blood pressure and kidney function |
| Repaglinide (diabetes medication) | Irbesartan may increase repaglinide blood levels via CYP2C9 inhibition, increasing risk of hypoglycemia | Blood glucose monitoring recommended; dose adjustment may be needed |
| Thiazide diuretics (hydrochlorothiazide, indapamide) | Enhanced blood pressure-lowering effect; risk of first-dose hypotension in volume-depleted patients | Start with lower irbesartan dose if patient is already on diuretics; monitor blood pressure |
Irbesartan Teva can be taken with or without food, as food does not significantly affect its absorption. There are no specific dietary restrictions. However, patients should maintain a balanced diet and avoid excessive intake of potassium-rich foods (such as bananas, oranges, potatoes, spinach, and tomatoes) if they are already at risk of elevated potassium levels. Moderate alcohol consumption is generally acceptable, but excessive alcohol intake can enhance the blood pressure-lowering effect and increase the risk of dizziness or fainting.
What Is the Correct Dosage of Irbesartan Teva?
Always take Irbesartan Teva exactly as your doctor has instructed. If you are unsure about anything, consult your doctor or pharmacist. The tablets are taken by mouth — swallow them whole with a sufficient amount of liquid (for example, a glass of water). You can take Irbesartan Teva with or without food at any time of day, although many healthcare professionals recommend taking it in the morning for convenience. Try to take your daily dose at approximately the same time each day to help you remember and to maintain consistent blood levels of the medication.
Adults
Hypertension (High Blood Pressure)
The usual starting dose is 150 mg once daily. Depending on the blood pressure response, your doctor may increase the dose to the maximum recommended dose of 300 mg once daily. An initial dose of 75 mg may be considered for certain patient groups, including those undergoing hemodialysis and patients over 75 years of age. The maximum blood pressure reduction is typically achieved within 4 to 6 weeks of starting treatment. It is crucial to continue taking Irbesartan Teva as directed, even if you feel well, because hypertension is often asymptomatic — it rarely causes noticeable symptoms until serious complications develop.
Hypertension with Type 2 Diabetes and Kidney Disease (Diabetic Nephropathy)
The preferred maintenance dose is 300 mg once daily. This higher dose has been demonstrated in the landmark IDNT clinical trial to provide optimal renal protection by significantly reducing proteinuria and slowing the progression of diabetic kidney disease to end-stage renal failure. Treatment should be initiated at 150 mg and titrated up to 300 mg as tolerated.
Special Populations
Your doctor may prescribe a lower initial dose of 75 mg once daily in certain situations, including:
- Patients undergoing hemodialysis (kidney dialysis), as these patients may be more sensitive to the blood pressure-lowering effect
- Patients older than 75 years, who may be more prone to hypotension
- Patients with volume or salt depletion (for example, those taking high-dose diuretics or who have had prolonged vomiting or diarrhea)
Children
Irbesartan Teva should not be given to children and adolescents under 18 years of age. The safety and efficacy of irbesartan have not been adequately established in the pediatric population. If a child accidentally swallows any tablets, contact a doctor or poison control center immediately, as even low doses can cause significant hypotension in young children.
Elderly
Dose adjustment is generally not required for most elderly patients. However, patients over 75 years of age may be started on a lower dose of 75 mg as a precautionary measure, and blood pressure should be monitored more closely during the initial weeks of treatment. The prescribing physician will weigh the benefits of treatment against the patient’s overall health status, kidney function, and other medications being taken concurrently.
Missed Dose
If you accidentally miss a dose, simply take your next dose at the regular scheduled time. Do not take a double dose to compensate for a missed tablet, as this may cause your blood pressure to drop too low. If you find that you frequently forget doses, consider setting a daily alarm on your phone, using a pill organizer, or linking your medication to a daily routine (such as taking it with breakfast). Consistency in daily dosing is essential for maintaining stable blood pressure control and achieving the full therapeutic benefit of the medication.
Overdose
If you accidentally take too many Irbesartan Teva tablets, contact your doctor, a poison control center, or go to the nearest emergency department immediately. Overdose symptoms may include severe low blood pressure (hypotension) manifesting as dizziness, lightheadedness, or fainting, as well as a rapid or irregular heartbeat (tachycardia). Bring the medicine packaging with you so healthcare providers know exactly what you have taken and how much. Treatment of overdose is supportive and symptomatic — irbesartan is not significantly removed by hemodialysis.
What Are the Side Effects of Irbesartan Teva?
As with all medications, Irbesartan Teva may cause unwanted effects in some patients. Because this is a generic formulation of irbesartan, the side effect profile is identical to that of the original brand-name products such as Aprovel. Most side effects are mild to moderate in severity and often improve or resolve as your body adjusts to the treatment over the first few weeks. However, some side effects can be serious and require prompt medical attention. Understanding the frequency and nature of potential adverse effects enables you to recognise warning signs early and seek appropriate medical advice.
The side effects listed below are classified according to their frequency, based on extensive clinical trial data and post-marketing surveillance involving tens of thousands of patients. It is important to note that frequency estimates are based on population data — your individual experience may differ, and many patients complete treatment without experiencing any notable side effects.
Allergic skin reactions (rash, hives), swelling of the face, lips, tongue, or throat (angioedema), or difficulty breathing. Stop taking Irbesartan Teva and contact your doctor or emergency services immediately. These symptoms, although rare, may indicate a serious allergic reaction that requires urgent treatment.
Very Common
May affect more than 1 in 10 patients
- Elevated potassium levels in blood tests (hyperkalemia) — primarily in patients with hypertension and type 2 diabetes with kidney disease
Common
May affect up to 1 in 10 patients
- Dizziness
- Nausea and/or vomiting
- Fatigue
- Elevated creatine kinase (CK) levels in blood tests
- Orthostatic dizziness (feeling dizzy when standing up) — primarily in diabetic kidney disease patients
- Low blood pressure upon standing (orthostatic hypotension) — primarily in diabetic kidney disease patients
- Joint or muscle pain (musculoskeletal pain) — primarily in diabetic kidney disease patients
- Decreased hemoglobin levels — primarily in diabetic kidney disease patients
Uncommon
May affect up to 1 in 100 patients
- Heart palpitations (awareness of heartbeat)
- Flushing (redness of the face and neck)
- Cough
- Diarrhea
- Indigestion / heartburn (dyspepsia)
- Sexual dysfunction
- Chest pain
- Jaundice (yellowing of the skin and/or whites of the eyes)
Rare
May affect up to 1 in 1,000 patients
- Intestinal angioedema — swelling in the intestinal wall causing abdominal pain, nausea, vomiting, and diarrhea
Not Known
Frequency cannot be estimated from available data (post-marketing reports)
- Dizziness, headache
- Taste disturbances (dysgeusia)
- Tinnitus (ringing in the ears)
- Muscle cramps, joint and muscle pain
- Anemia (decreased red blood cell count) — symptoms may include tiredness, breathlessness during exercise, and pallor
- Decreased platelet count (thrombocytopenia)
- Liver function abnormalities (hepatitis)
- Elevated blood potassium levels (hyperkalemia)
- Impaired kidney function
- Leukocytoclastic vasculitis (inflammation of small blood vessels, mainly affecting the skin)
- Severe allergic reactions (anaphylactic shock)
- Low blood sugar levels (hypoglycemia)
If you experience any side effects, including those not listed above, talk to your doctor or pharmacist. You can also report side effects directly to your national medicines regulatory authority (for example, the FDA in the United States, the MHRA in the United Kingdom, the EMA for the European Union, or the TGA in Australia). Reporting side effects contributes to the ongoing monitoring of this medicine’s safety profile and helps protect other patients.
How Should You Store Irbesartan Teva?
Proper storage of your medication ensures it remains effective and safe to use throughout its shelf life. Incorrect storage — such as exposure to excessive heat, moisture, or light — can degrade the active ingredient and reduce the medication’s potency. Follow these guidelines carefully to store Irbesartan Teva correctly:
- Temperature: Store at temperatures not exceeding 25°C (77°F). Keep in a cool, dry place away from direct sunlight and heat sources. Do not store in the bathroom, as humidity can affect the tablets. Do not freeze.
- Packaging: Keep the tablets in the original blister pack or container to protect them from moisture and light. Do not transfer the tablets to a different container unless directed by your pharmacist.
- Children: Keep this medicine out of the sight and reach of children at all times. Consider using a locked medicine cabinet or a child-resistant container.
- Expiry date: Do not use Irbesartan Teva after the expiry date stated on the carton and blister pack after “EXP.” The expiry date refers to the last day of that month.
- Disposal: Do not dispose of medicines via wastewater or household waste. Return unused or expired medicines to your pharmacist for safe disposal. This helps protect the environment and prevents accidental exposure by others.
What Does Irbesartan Teva Contain?
Each Irbesartan Teva tablet contains a precise amount of the active ingredient irbesartan, along with inactive ingredients (excipients) that help form the tablet, facilitate its absorption in the body, and protect its stability during storage. The inactive ingredients in a generic formulation may differ from those in the original brand-name product, but these differences do not affect the medication’s therapeutic effect, as all generic medicines must demonstrate bioequivalence to the originator.
Active Substance
The active substance is irbesartan. Each Irbesartan Teva 75 mg film-coated tablet contains 75 mg of irbesartan. The 150 mg and 300 mg strengths are also available for patients requiring higher doses. The active ingredient is identical in every respect to that used in the original brand-name products (such as Aprovel) and is manufactured according to stringent Good Manufacturing Practice (GMP) standards.
Other Ingredients
The tablet core contains: lactose monohydrate, microcrystalline cellulose, croscarmellose sodium, colloidal anhydrous silica (silicon dioxide), and magnesium stearate. The film coating contains: hypromellose, titanium dioxide (E171), macrogol 400, and polysorbate 80. Some strengths may also contain iron oxide pigments as coloring agents.
Appearance and Pack Sizes
Irbesartan Teva 75 mg tablets are white to off-white, round or oval film-coated tablets, typically debossed with an identification marking. They are available in blister packs of 14, 28, 30, 56, 84, 90, and 98 tablets. Hospital pack sizes and unit-dose blisters may also be available. Not all pack sizes may be marketed in every country. Consult your pharmacist for information about the specific packs available in your region.
Frequently Asked Questions About Irbesartan Teva
Irbesartan Teva is used to treat high blood pressure (essential hypertension) in adults. It is also used to protect the kidneys in patients who have both high blood pressure and type 2 diabetes with laboratory-confirmed kidney disease. The active ingredient, irbesartan, works by blocking angiotensin II receptors, causing blood vessels to relax and blood pressure to decrease. It is taken once daily as a tablet.
Irbesartan Teva and Aprovel both contain the same active ingredient — irbesartan — and work in exactly the same way to lower blood pressure. Irbesartan Teva is a generic version manufactured by Teva Pharmaceutical Industries, while Aprovel is the original brand-name product made by Sanofi. Generic medicines must meet the same stringent quality, safety, and efficacy standards as the original, and must demonstrate bioequivalence, meaning they deliver the same amount of active substance to the bloodstream at the same rate. You can expect the same clinical effect from both products.
No. Irbesartan Teva must not be used during pregnancy, especially during the last 6 months (second and third trimesters), as it can cause serious and potentially irreversible harm to the unborn baby, including kidney damage, reduced amniotic fluid, skull malformations, and even fetal death. It should also be avoided during early pregnancy whenever possible. If you discover you are pregnant while taking Irbesartan Teva, contact your doctor immediately so they can switch you to a safer alternative antihypertensive medication.
The most common side effects of Irbesartan Teva include dizziness, nausea or vomiting, fatigue, and elevated creatine kinase levels in blood tests. In patients with high blood pressure and diabetic kidney disease, additional common side effects include orthostatic dizziness (when standing up), low blood pressure upon standing, joint or muscle pain, and decreased hemoglobin levels. Most side effects are mild and often improve as your body adjusts to the medication. If any side effects persist or worsen, consult your doctor.
Irbesartan Teva begins to lower blood pressure within a few hours of the first dose. However, the maximum blood pressure reduction is typically achieved within 4 to 6 weeks of regular daily treatment. It is very important to continue taking the medication as prescribed by your doctor, even if you feel well, because high blood pressure usually has no noticeable symptoms. Your doctor will monitor your blood pressure at regular intervals and may adjust your dose if needed.
If you miss a dose of Irbesartan Teva, simply take the next dose at the usual time. Do not take a double dose to make up for a missed one. To help you remember, try to take your medication at the same time each day. If you frequently forget doses, consider using a pill organizer, setting a daily alarm on your phone, or asking your pharmacist about reminder services. Consistent daily dosing is important for maintaining stable blood pressure control.
References
This article is based on approved prescribing information, international clinical guidelines, and peer-reviewed medical literature. All sources are independent and free from commercial influence.
- European Medicines Agency (EMA). Irbesartan Teva — Summary of Product Characteristics. EMA Irbesartan Teva EPAR. Last updated 2025.
- Williams B, Mancia G, Spiering W, et al. 2018 ESC/ESH Guidelines for the management of arterial hypertension. European Heart Journal. 2018;39(33):3021–3104. doi:10.1093/eurheartj/ehy339
- Lewis EJ, Hunsicker LG, Clarke WR, et al. Renoprotective effect of the angiotensin-receptor antagonist irbesartan in patients with nephropathy due to type 2 diabetes (IDNT). New England Journal of Medicine. 2001;345(12):851–860. doi:10.1056/NEJMoa011303
- World Health Organization (WHO). WHO Model List of Essential Medicines — 23rd List (2023). WHO Essential Medicines.
- Whelton PK, Carey RM, Aronow WS, et al. 2017 ACC/AHA Guideline for the Prevention, Detection, Evaluation, and Management of High Blood Pressure in Adults. Journal of the American College of Cardiology. 2018;71(19):e127–e248. doi:10.1016/j.jacc.2017.11.006
- National Institute for Health and Care Excellence (NICE). Hypertension in adults: diagnosis and management. NICE guideline [NG136]. Updated 2022. NICE NG136.
- British National Formulary (BNF). Irbesartan — Indications, dose, contraindications, side-effects. BNF Irbesartan.
- Parving HH, Lehnert H, Bröchner-Mortensen J, et al. The effect of irbesartan on the development of diabetic nephropathy in patients with type 2 diabetes (IRMA 2). New England Journal of Medicine. 2001;345(12):870–878. doi:10.1056/NEJMoa011489
Editorial Team
This article has been written and reviewed by the iMedic Medical Editorial Team, comprising licensed physicians specializing in cardiology, nephrology, clinical pharmacology, and internal medicine.
Medical Content Team
Specialists in cardiovascular medicine, nephrology, and clinical pharmacology with documented academic backgrounds and clinical experience in hypertension management and diabetic kidney disease.
Medical Review Board
Independent panel of board-certified physicians who review all medication content according to international guidelines (ESC/ESH, AHA/ACC, NICE, WHO) and the GRADE evidence framework.
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