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Pizotifen: Brands, Price & Uses in Bangladesh
Pizotifen is indicated for the prophylaxis (prevention) of recurrent vascular headache of the migraine type, including classical migraine, common migraine, and cluster headache.
About Pizotifen
Indications of Pizotifen
Pizotifen is indicated for the prophylaxis (prevention) of recurrent vascular headache of the migraine type, including classical migraine, common migraine, and cluster headache.
- Established use: Migraine prophylaxis in adults and children who experience frequent or severe migraine attacks (guideline-supported, first-line/second-line prophylactic option in several national migraine guidelines).
- Established use: Prophylaxis of cluster headache.
Pizotifen is not effective for treating an acute migraine attack that has already started, and it is not an analgesic. It is intended only to reduce the frequency and severity of future attacks, and its full preventive benefit typically takes several weeks to become apparent.
Dosage & Administration of Pizotifen
Adults
| Regimen | Dose |
|---|---|
| Starting dose | 0.5 mg once daily at bedtime, increased gradually according to response |
| Usual maintenance dose | 1.5 mg daily, taken as a single bedtime dose or in divided doses (e.g. three times daily) |
| Maximum dose | 4.5 mg daily (up to 3 mg may be given as a single dose) |
Children (2 years and older)
| Age | Dose |
|---|---|
| 2 years and older | Usually up to 1 mg at night, or up to 1.5 mg daily in divided doses, under medical supervision |
Safety and efficacy of Pizotifen in children under 2 years of age have not been established.
Renal/Hepatic Impairment
Dosage adjustment or caution may be necessary in patients with significant hepatic or renal impairment (see Use in Special Populations).
Note: Pizotifen is a preventive treatment and must be taken regularly every day, even when headache-free, to be effective. It is not for use during an acute migraine attack. Treatment should not be stopped abruptly after prolonged use (see Precautions and Warnings).
Side Effects of Pizotifen
Side effects of Pizotifen are largely related to its antihistaminic and anticholinergic activity.
Very Common
- Increased appetite and weight gain
- Drowsiness/sedation, especially at the start of treatment
Common
- Dry mouth
- Dizziness
- Nausea
- Fatigue/lethargy
Uncommon/Rare
- Urinary retention or difficulty urinating
- Blurred vision
- Muscle pain, nervousness, or sleep disturbance
- Hepatic injury (transaminase elevation to rare hepatitis) — reported rarely
- Hypersensitivity reactions (rash, angioedema) — rare
Patients should seek medical advice if side effects are severe, persistent, or if signs of liver problems (yellowing of skin/eyes, dark urine) or allergic reaction occur.
Contraindications of Pizotifen
Pizotifen is contraindicated in the following situations:
- Known hypersensitivity to Pizotifen (pizotifen) or to any of the excipients in the formulation.
- Concurrent treatment with a monoamine oxidase inhibitor (MAOI).
Pizotifen should be used with caution rather than being absolutely contraindicated in conditions such as angle-closure glaucoma, urinary retention, epilepsy, and hepatic/renal impairment — see Precautions and Warnings for details.
Frequently Asked Questions about Pizotifen
What is Pizotifen used for?
Pizotifen is used to prevent (not treat) recurrent migraine headaches and cluster headaches. It is taken regularly to reduce how often and how severely attacks occur, not to relieve an attack that has already started.
Will Pizotifen stop a migraine attack that has already started?
No. Pizotifen is a preventive medicine only. It does not relieve an ongoing migraine attack; a separate acute treatment (such as an analgesic or triptan, as advised by your physician) is needed for that purpose.
How long does Pizotifen take to work?
It may take several weeks (commonly 6–8 weeks) of regular daily use before the full preventive benefit of Pizotifen becomes apparent. Do not stop early just because attacks have not immediately reduced — discuss with your physician first.
Why do I feel sleepy and hungrier after starting Pizotifen?
Drowsiness and increased appetite with weight gain are very common, expected effects of Pizotifen because of its antihistamine activity. Taking the dose at bedtime can help with sleepiness; discuss persistent or bothersome weight gain with your physician.
Can I stop taking Pizotifen suddenly?
No. If you have been taking Pizotifen for a while, stopping suddenly can cause withdrawal symptoms such as depression, tremor, nausea, anxiety, malaise, dizziness, sleep disturbance, and weight loss. Your physician will usually advise reducing the dose gradually when it is time to stop.
Is Pizotifen safe during pregnancy or breastfeeding?
Data on Pizotifen in pregnancy are limited, so it should be used in pregnancy only if clearly needed and if the benefit outweighs the potential risk to the baby, on your physician's advice. Use during breastfeeding is generally not recommended because safety in nursing infants has not been established. Always consult your physician if you are pregnant, planning pregnancy, or breastfeeding.
Disclaimer
The information provided is accurate to the best of our knowledge, but it does not replace professional medical advice. We cannot guarantee its completeness or accuracy, and the absence of specific information about a drug should not be taken as an endorsement. We are not responsible for any consequences arising from this information, so please consult a healthcare professional for any concerns or questions.