Propiomazin Orifarm: Uses, Dosage & Side Effects
A phenothiazine-type sedative for short-term treatment of insomnia in adults
Quick Facts About Propiomazin Orifarm
Key Takeaways About Propiomazin Orifarm
- Short-term use: Propiomazin Orifarm is intended for short-term treatment of insomnia and should be used at the lowest effective dose for the shortest possible duration
- Delayed onset: Full effect is reached 1 to 2 hours after taking the tablet, so take it 30 to 60 minutes before bedtime
- Sustained nighttime action: The medication reduces the number of nighttime awakenings, providing more continuous sleep throughout the night
- Avoid alcohol: Combining propiomazine with alcohol can cause extreme drowsiness and loss of consciousness, which may be life-threatening
- Caution in elderly: Older adults are more sensitive to the effects of propiomazine, including daytime drowsiness, muscle stiffness, and restlessness
What Is Propiomazin Orifarm and What Is It Used For?
Propiomazin Orifarm is a sedative medication containing propiomazine, a phenothiazine derivative that exerts a calming effect on certain parts of the brain. It is prescribed for the short-term treatment of various forms of insomnia in adults, reaching full effect within 1 to 2 hours and providing sustained sleep throughout the night.
Propiomazine belongs to the phenothiazine class of medications, which are compounds that act on multiple neurotransmitter systems in the central nervous system. Unlike many modern hypnotic agents that primarily target the GABA receptor system, propiomazine exerts its sedative effect through a combination of antihistaminic (H1 receptor blockade), antidopaminergic, and anticholinergic activity. The antihistaminic action is primarily responsible for its sleep-inducing properties, making it pharmacologically distinct from benzodiazepines and so-called Z-drugs such as zopiclone and zolpidem.
Propiomazin Orifarm is indicated for the short-term treatment of various forms of sleep disturbance (insomnia) in adults. This includes difficulty falling asleep, frequent nighttime awakenings, and early morning awakening. The medication has a notable characteristic that distinguishes it from many other sleep aids: its sustained action throughout the night, which effectively reduces the number of awakenings during sleep. This makes it particularly suitable for patients whose primary complaint is fragmented sleep rather than difficulty falling asleep.
It is important to emphasise that propiomazine is intended for short-term use only. Persistent insomnia lasting more than a few weeks may be a symptom of an underlying physical or mental health condition that requires investigation and targeted treatment. The European Sleep Research Society and the American Academy of Sleep Medicine recommend cognitive behavioural therapy for insomnia (CBT-I) as the first-line treatment for chronic insomnia, with pharmacological agents reserved for short-term use when non-pharmacological approaches are insufficient or unavailable.
Propiomazine is primarily available in certain European countries. It is not widely marketed in the United States or the United Kingdom. If you are travelling or relocating, speak with your healthcare provider about equivalent treatments available in your destination country. Do not attempt to substitute another medication without medical guidance.
What Should You Know Before Taking Propiomazin Orifarm?
Propiomazin Orifarm is not suitable for everyone. You must not take it if you are allergic to propiomazine or any of its inactive ingredients. Special caution is required in patients with impaired liver or kidney function, a history of substance misuse, or in elderly patients who may be more sensitive to its effects.
Contraindications
You must not take Propiomazin Orifarm if you have:
- Allergy to propiomazine or any of the other ingredients in the tablet (listed in the Composition section below), including lactose monohydrate, potato starch, talc (E553b), colloidal anhydrous silicon dioxide, sodium stearyl fumarate, hypromellose (E464), titanium dioxide (E171), and macrogol
Although the contraindication list for propiomazine is relatively narrow compared to some other sedatives, the decision to prescribe this medication must always take into account the individual patient's full medical history, concomitant medications, and the underlying cause of insomnia. Your healthcare provider will evaluate whether propiomazine is appropriate for your specific situation.
Warnings and Precautions
Talk to your healthcare provider before taking Propiomazin Orifarm if you have any of the following conditions or risk factors:
- Impaired liver function: Propiomazine is metabolised in the liver. Reduced hepatic function may slow the clearance of the drug, increasing the risk of accumulation and intensified side effects including excessive sedation
- Impaired kidney function: Although propiomazine is not primarily excreted renally, kidney impairment may affect the elimination of metabolites. Your prescriber may need to adjust the dose accordingly
- Prolonged insomnia: If your insomnia persists over a longer period, it may indicate an underlying physical or psychiatric condition such as depression, anxiety, chronic pain, or sleep apnoea. These conditions require specific diagnosis and treatment rather than symptomatic sedation
- History of substance misuse: Patients with a current or previous history of alcohol, drug, or medication misuse should use propiomazine with particular caution, as any sedative medication carries a potential for psychological habituation in this population
With prolonged use, propiomazine can cause dry mouth (xerostomia), which may lead to an increased risk of dental caries (tooth decay) and damage to the oral mucosa. If you are taking propiomazine for more than a few days, maintain thorough oral hygiene: brush your teeth carefully with fluoride toothpaste twice daily, use sugar-free chewing gum to stimulate saliva production, and stay well hydrated.
Propiomazin Orifarm should be used with particular caution in elderly patients. Older adults may be more sensitive to the effects of propiomazine, including daytime drowsiness, muscle stiffness and rigidity, involuntary movements, restless legs syndrome, and motor retardation. These extrapyramidal effects are a characteristic risk of phenothiazine-class medications and are more likely to occur in older patients. The lowest effective dose should be used, and the patient should be monitored closely for adverse effects.
Pregnancy and Breastfeeding
Propiomazin Orifarm is not recommended during pregnancy. If you are pregnant, think you may be pregnant, or are planning to become pregnant, consult your healthcare provider before taking this medication. Phenothiazine-type drugs may pose risks to the developing foetus, and the potential benefits must be carefully weighed against the potential risks.
It is unknown whether propiomazine passes into breast milk. If you are breastfeeding, the decision to use Propiomazin Orifarm must balance the mother's need for treatment against the potential risks to the nursing infant. Your healthcare provider can help you evaluate these risks and consider safer alternatives if necessary.
Driving and Operating Machinery
Propiomazin Orifarm can cause drowsiness and dizziness, which may impair your ability to drive, operate machinery, or perform tasks that require mental alertness. These effects can persist into the following day, particularly if you did not get a full night's sleep. You should not drive or engage in activities requiring sharp concentration until you are fully alert and confident that the medication is no longer affecting your performance. You are personally responsible for assessing whether you are fit to drive or operate machinery while taking this medication.
Lactose and Sodium Content
Propiomazin Orifarm tablets contain lactose monohydrate. If you have been told by your doctor that you have an intolerance to certain sugars, contact your healthcare provider before taking this medicine.
This medicine contains less than 1 mmol (23 mg) of sodium per tablet, meaning it is essentially sodium-free and suitable for patients on a sodium-restricted diet.
How Does Propiomazin Orifarm Interact with Other Drugs?
Propiomazin Orifarm interacts with many medications that affect the central nervous system. The most dangerous interactions are with opioid analgesics, benzodiazepines, other sedatives, and alcohol, which can cause extreme drowsiness and loss of consciousness that may be life-threatening. Always inform your doctor about all medications you are taking.
Propiomazine acts as a central nervous system (CNS) depressant. When combined with other substances that also depress CNS activity, the sedative effects can be additive or even synergistic, leading to profound sedation, respiratory depression, and potentially life-threatening consequences. It is essential to inform your prescriber about every medication — including over-the-counter drugs and herbal supplements — that you are currently taking or have recently taken.
Major Interactions
The following drug combinations with propiomazine carry significant clinical risk and should generally be avoided or used only under close medical supervision:
| Drug / Drug Class | Effect | Clinical Significance |
|---|---|---|
| Opioid analgesics (morphine, codeine, tramadol, oxycodone, fentanyl) | Additive CNS depression; increased risk of respiratory depression, profound sedation, loss of consciousness | Potentially life-threatening. Combined use can lead to extreme drowsiness and coma. Use only when no alternatives exist, at minimum doses. |
| Benzodiazepines (diazepam, lorazepam, alprazolam, oxazepam) | Enhanced sedation, respiratory depression, increased fall risk | High risk. Concurrent use of anxiolytics and propiomazine can result in life-threatening drowsiness and loss of consciousness. |
| Alcohol | Marked increase in sedation, psychomotor impairment, respiratory depression | Must be completely avoided. The combination can cause extreme drowsiness and unconsciousness, which can be fatal. |
| Other hypnotics (zopiclone, zolpidem) | Additive sedation and CNS depression | Avoid combining sleep medications. Using two hypnotics simultaneously greatly increases the risk of excessive sedation. |
| Barbiturates (phenobarbital) | Profound CNS depression; additive sedative and anticonvulsant effects | Potentially life-threatening. Should be avoided unless under strict medical supervision with dose adjustments. |
Moderate Interactions
The following interactions may require dose adjustments or careful monitoring:
| Drug / Drug Class | Effect | Clinical Significance |
|---|---|---|
| Antipsychotics (haloperidol, chlorpromazine, quetiapine, olanzapine) | Enhanced CNS depression and increased risk of extrapyramidal side effects | Use with caution. Monitor for excessive sedation, muscle rigidity, and involuntary movements. |
| Sedating antidepressants (mirtazapine, amitriptyline, doxepin) | Additive sedation and anticholinergic effects (dry mouth, constipation, urinary retention) | Monitor for excessive drowsiness. Dose adjustment of one or both drugs may be necessary. |
| Sedating antihistamines (promethazine, hydroxyzine, diphenhydramine) | Additive sedation and anticholinergic effects | May increase next-day drowsiness and dry mouth. Avoid combining if possible. |
| Antihypertensives | Propiomazine may enhance the blood pressure-lowering effect | Monitor blood pressure, especially on standing. Risk of orthostatic hypotension. |
Concurrent use of propiomazine with anxiolytics, other hypnotics, strong opioid analgesics, or other sedative medications can lead to extreme drowsiness and loss of consciousness, which may be life-threatening. If you are prescribed propiomazine together with any of these medications, your prescriber will use the lowest possible doses for the shortest necessary duration and will monitor you closely.
What Is the Correct Dosage of Propiomazin Orifarm?
The recommended adult dose of Propiomazin Orifarm is 25 to 50 mg (1 to 2 tablets) taken 30 to 60 minutes before bedtime. The dose should be individually determined by your prescriber, starting at the lowest effective level. The scored tablet can be split into two equal halves.
Always take Propiomazin Orifarm exactly as prescribed by your healthcare provider or pharmacist. Do not change the dose without consulting your prescriber. Your doctor should prescribe the lowest effective dose for the shortest possible treatment period, and the recommended dose should not be exceeded.
Adults
Standard Adult Dose
Recommended dose: 1 to 2 tablets (25 to 50 mg) taken 30 to 60 minutes before bedtime.
Administration: Swallow the tablet with water. The tablet has a score line and can be divided into two equal doses if a lower dose is needed.
Duration: Treatment should be as short as possible. Your prescriber will determine the appropriate duration based on the nature and severity of your insomnia.
Elderly Patients
Elderly Dose – Use with Caution
Starting dose: The lowest dose (half a tablet, 12.5 mg, or one tablet, 25 mg) is recommended.
Elderly patients may be more sensitive to the effects of propiomazine, including daytime drowsiness, muscle stiffness (extrapyramidal effects), and restlessness. Your prescriber will start at the lowest dose and increase only if necessary and well tolerated.
Children
Paediatric Use
Propiomazin Orifarm is indicated for use in adults only. It is not recommended for children or adolescents under 18 years of age. Non-pharmacological approaches to sleep difficulties should be the first-line intervention in children and adolescents.
| Patient Group | Dose | Timing | Notes |
|---|---|---|---|
| Adults | 25–50 mg (1–2 tablets) | 30–60 min before bedtime | Use lowest effective dose |
| Elderly | 12.5–25 mg (½–1 tablet) | 30–60 min before bedtime | Increased sensitivity; start low |
| Liver impairment | Individual dose adjustment | As directed by prescriber | Reduced clearance; monitor closely |
| Kidney impairment | Individual dose adjustment | As directed by prescriber | May require reduced dose |
| Children (<18 years) | Not recommended | N/A | Adults only |
Missed Dose
Do not take a double dose to make up for a forgotten dose. If you forget to take Propiomazin Orifarm before bedtime and are still awake, you may take it if you have enough hours of sleep remaining. If it is close to your normal waking time, skip the missed dose and take your next dose at the usual time the following evening.
Overdose
If you or someone else has taken too much Propiomazin Orifarm, or if a child has accidentally ingested the medication, contact your local emergency services or poison control centre immediately. Propiomazine overdose can be life-threatening, especially when combined with alcohol, recreational drugs, or other medications (see Drug Interactions above).
Symptoms of overdose may include: drowsiness, confusion, and loss of consciousness; restlessness, hallucinations, and seizures; dilated pupils; rapid heartbeat and irregular pulse; low blood pressure (hypotension); breathing difficulties; and abnormally elevated body temperature (hyperthermia).
What Are the Side Effects of Propiomazin Orifarm?
The most common side effect of Propiomazin Orifarm is drowsiness. Rare side effects include dry mouth, allergic skin reactions, photosensitivity rash, dizziness, low blood pressure, decreased platelet count, and extrapyramidal symptoms (muscle stiffness, involuntary movements, restless legs). Not everyone will experience side effects.
Like all medicines, Propiomazin Orifarm can cause side effects, although not everyone will experience them. Most side effects are dose-related and tend to be more common at higher doses or with prolonged use. If you experience any side effect that concerns you or persists, contact your healthcare provider for advice.
Common Side Effects
- Drowsiness (somnolence) – the most frequently reported side effect. May persist into the following day, particularly at higher doses or in elderly patients. Avoid driving or operating machinery until you know how this medication affects you.
Rare Side Effects
- Dry mouth (xerostomia) – can increase risk of dental caries with prolonged use. Maintain thorough oral hygiene with fluoride toothpaste twice daily.
- Allergic skin reactions – including rash, itching, and hives
- Photosensitivity rash – skin rash upon exposure to sunlight. Use sun protection and avoid prolonged sun exposure during treatment.
- Dizziness – may impair balance and increase fall risk, especially in elderly patients
- Low blood pressure (hypotension) – may cause lightheadedness upon standing (orthostatic hypotension)
- Decreased platelet count (thrombocytopenia) – may increase bleeding tendency. Report unusual bruising or bleeding to your doctor.
- Muscle stiffness and rigidity – extrapyramidal side effect characteristic of phenothiazine-class medications
- Motor retardation (bradykinesia) – slowed movements and reduced spontaneous motor activity
- Involuntary movements (dyskinesia) – including tremor and facial movements
- Restless legs syndrome (akathisia) – an unpleasant urge to move the legs, often worse at rest
- Tingling, numbness, or tremor (paraesthesia) – sensory disturbances in the extremities
Because propiomazine is a phenothiazine derivative, it has the potential to cause extrapyramidal side effects, which involve the motor control system. These include muscle stiffness, tremor, involuntary movements, restlessness, and motor retardation. While these effects are listed as rare, they may be more common in elderly patients and in individuals who are particularly sensitive to phenothiazine-class drugs. If you notice any unusual stiffness, shakiness, or involuntary movements, contact your prescriber promptly.
It is important to report suspected side effects to help continuously monitor the benefit-risk balance of this medication. You can report side effects to your national medicines agency or pharmacovigilance authority. Healthcare professionals are encouraged to report all suspected adverse reactions.
How Should You Store Propiomazin Orifarm?
Store Propiomazin Orifarm at room temperature in its original packaging, out of the sight and reach of children. Do not use after the expiry date printed on the packaging.
Proper storage of Propiomazin Orifarm is important to maintain its effectiveness and safety:
- Child safety: Keep this medication out of the sight and reach of children at all times. Accidental ingestion by a child can cause serious harm and requires immediate emergency treatment.
- Expiry date: Do not use Propiomazin Orifarm after the expiry date (EXP) printed on the package. The expiry date refers to the last day of the stated month.
- Storage conditions: Store at room temperature. Keep the tablets in their original packaging to protect them from light and moisture.
- Disposal: Do not dispose of unused medication via household waste or down the drain. Return unused or expired tablets to a pharmacy for safe, environmentally responsible disposal.
What Does Propiomazin Orifarm Contain?
Each Propiomazin Orifarm film-coated tablet contains propiomazine maleate equivalent to 25 mg of propiomazine as the active substance. The tablet also contains several inactive ingredients (excipients) including lactose monohydrate.
Active substance: Propiomazine maleate, equivalent to 25 mg propiomazine per tablet.
Tablet core (excipients):
- Lactose monohydrate (filler/diluent)
- Potato starch (disintegrant)
- Talc E553b (glidant)
- Colloidal anhydrous silicon dioxide (glidant)
- Sodium stearyl fumarate (lubricant)
Film coating:
- Hypromellose E464 (film-forming agent)
- Titanium dioxide E171 (opacifier/colorant)
- Macrogol (plasticiser)
Propiomazin Orifarm tablets contain lactose monohydrate. If you have been told by your doctor that you have an intolerance to certain sugars, contact your healthcare provider before taking this medicine.
Appearance: White to off-white, round film-coated tablet with a score line on one side and smooth on the other side. The tablet diameter is 9 mm. The tablet can be divided into two equal halves.
Pack sizes: Available in blister packs (PVC-Al) of 20, 50, and 100 tablets, and in HDPE bottles with polypropylene caps containing 250 tablets (for dose dispensing only). Not all pack sizes may be marketed in all countries.
Marketing authorisation holder and manufacturer: Orifarm Generics A/S, Energivej 15, 5260 Odense S, Denmark.
Frequently Asked Questions About Propiomazin Orifarm
Propiomazin Orifarm is used for the short-term treatment of various forms of insomnia (sleep disturbances) in adults. It belongs to the phenothiazine class of sedatives and works by dampening activity in certain parts of the brain to promote sleep. It reaches full effect within 1 to 2 hours and has a sustained action throughout the night, which helps reduce the number of nighttime awakenings. It is not intended for long-term use, and persistent insomnia may require investigation for underlying conditions.
Propiomazine carries a lower risk of physical dependence compared to benzodiazepines and Z-drugs such as zopiclone and zolpidem. However, it should still be used for the shortest possible duration and at the lowest effective dose. Patients with a history of alcohol, drug, or medication misuse should use propiomazine with particular caution, as any sedative medication carries a potential for psychological habituation. If you have concerns about dependence, discuss alternative treatments such as cognitive behavioural therapy for insomnia (CBT-I) with your healthcare provider.
No, you must not drink alcohol while taking Propiomazin Orifarm. The combination of propiomazine and alcohol can lead to extreme drowsiness and loss of consciousness, which can be life-threatening. Alcohol significantly enhances the central nervous system depressant effects of propiomazine, increasing the risk of respiratory depression, falls, and other dangerous outcomes. If you have consumed alcohol, do not take propiomazine that evening.
Propiomazin Orifarm reaches its full effect within 1 to 2 hours after taking the tablet. This is somewhat slower than some other sleep medications such as zopiclone (which typically works within 30 minutes). For this reason, the recommended timing is to take the tablet 30 to 60 minutes before bedtime. Once the sedative effect takes hold, it has a sustained action throughout the night, helping to reduce the number of nighttime awakenings and providing more continuous sleep.
Propiomazin Orifarm can be used in elderly patients but requires extra caution. Older adults are more sensitive to its effects, particularly daytime drowsiness, muscle stiffness (extrapyramidal effects), involuntary movements, and restlessness. These side effects are characteristic of phenothiazine-class medications and are more likely to occur in elderly patients. The lowest effective dose should be used, and the patient should be monitored closely by their healthcare provider. Non-pharmacological approaches to insomnia, such as sleep hygiene improvements and cognitive behavioural therapy, should be considered as first-line options in this population.
Dry mouth (xerostomia) is a known side effect of propiomazine that can increase the risk of dental cavities and damage to the oral mucosa with prolonged use. To manage this symptom, maintain thorough oral hygiene by brushing your teeth carefully with fluoride toothpaste twice daily. Sugar-free chewing gum can help stimulate saliva production, and saliva substitutes are available at pharmacies. Drinking water regularly throughout the day also helps. If dry mouth is persistent and bothersome, speak with your healthcare provider about whether the medication should be continued or an alternative treatment considered.
References
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- World Health Organization (WHO). WHO Model List of Essential Medicines – 23rd List. Geneva: WHO; 2023.
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- National Institute for Health and Care Excellence (NICE). Clinical guideline [CG191]: Insomnia. Available at: www.nice.org.uk. Updated 2023.
- British National Formulary (BNF). Phenothiazines – Drug Class Overview. NICE Evidence Services. Available at: bnf.nice.org.uk. Accessed January 2026.
- Stahl SM. Stahl's Essential Psychopharmacology: Neuroscientific Basis and Practical Applications. 4th ed. Cambridge University Press; 2013. Chapter on sedative-hypnotics and phenothiazine pharmacology.
- Orifarm Generics A/S. Package leaflet: Information for the patient – Propiomazin Orifarm 25 mg film-coated tablets. Last revised April 2023.
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