Pizotifen

Pizotifen is a serotonin antagonist / migraine prophylactic medicine available in Bangladesh under many brand names. Below are its uses, dosage, side effects and precautions — and all brands with their current prices.

Doctors prescribe Pizotifen for:

• Migraine prophylaxis — preventing frequent or disabling migraine attacks in adults, and in children when a specialist advises
• Recurrent vascular headaches, including cluster-type headaches in selected patients

Preventive treatment with Pizotifen is usually considered when attacks come several times a month, last long, or do not respond well to acute painkillers. It is a prescription-only medicine; the decision to start, the dose, and how long to continue all belong to your doctor, who will weigh benefit against side effects such as weight gain and drowsiness.

Pizotifen is prescription-only; your doctor sets the dose. General information:

• Adults: commonly 1.5 mg daily — either 0.5 mg three times a day or, very often, the whole dose at night, because the medicine causes drowsiness. The doctor may adjust between 0.5 and 3 mg daily; higher doses are divided.
• Children (specialist use): usually up to 1.5 mg daily, commonly given at night.
• Benefit develops gradually — allow 4–8 weeks of regular use before judging the response, and keep a headache diary.

Take it every day, not just when you have pain. Do not stop it abruptly on your own — sudden withdrawal after long use can cause rebound symptoms such as poor sleep, nausea and irritability; your doctor will reduce it gradually when the time comes.

Common side effects of Pizotifen:

• Increased appetite and weight gain — the best-known effect; weight should be checked regularly
• Drowsiness and tiredness, especially at the start — usually improves with time and is managed by night dosing
• Dry mouth
• Dizziness, nausea
• Constipation in some people

Less commonly there may be muscle aches, mood changes or, rarely, paradoxical restlessness in children. Seek medical advice if you notice marked continuing weight gain, persistent low mood, severe drowsiness that does not settle, difficulty passing urine, or any allergic reaction such as rash and swelling.

Take these precautions with Pizotifen:

• Watch your weight: weigh yourself monthly, eat sensibly and stay active — appetite increase is common and gradual.
• Driving caution: avoid driving or operating machinery until you know how drowsy the medicine makes you, particularly in the first weeks.
• Avoid alcohol — it adds to the sedation.
• Tell your doctor if you have glaucoma, difficulty passing urine or an enlarged prostate, kidney problems or epilepsy — pizotifen's antihistamine-like effects need caution in these conditions.
• Do not stop long-term treatment abruptly; reduce gradually under medical guidance.
• Keep follow-up visits so the doctor can confirm the preventive benefit justifies continuing.

Tell your doctor about all your medicines. Important interactions with Pizotifen:

• Alcohol — increased drowsiness; avoid.
• Sleeping pills, benzodiazepines and other sedatives — additive sedation.
• Sedating antihistamines (e.g., chlorpheniramine) — drowsiness and dry-mouth effects add up.
• Antidepressants — tricyclics add sedation and anticholinergic effects; in theory pizotifen may blunt some serotonergic medicines, so mention any antidepressant use.
• Anticholinergic medicines — increased dry mouth, constipation and urinary difficulty.

Pizotifen must not be used in:

• Allergy to Pizotifen or any ingredient of the preparation
• Angle-closure glaucoma
• Urinary retention or significant prostate enlargement with obstruction

Use with caution, on medical advice, in people with epilepsy, kidney or liver impairment, and in the elderly, who are more sensitive to drowsiness and anticholinergic effects. Some formulations contain lactose or sucrose — mention any sugar intolerance to your doctor or pharmacist.

Pregnancy: there is limited information about Pizotifen use in human pregnancy. Pizotifen should be used during pregnancy only if the doctor judges it clearly necessary — migraine prevention can very often be paused or replaced with safer measures during this period. Tell your doctor immediately if you become pregnant while taking it.

Breastfeeding: Pizotifen may pass into breast milk and could make the baby drowsy or irritable. Breastfeeding is generally not recommended during treatment with Pizotifen; if you are nursing, ask your doctor about safer alternatives.

Store Pizotifen below 30°C in a cool, dry place away from direct sunlight and moisture, in its original packaging. Keep it strictly out of the reach of children — the tablets are small and sugar-coated in some brands, which can attract children. Do not use after the expiry date, and return unused medicine to a pharmacy rather than throwing it into household waste.