Postafen
Postafen is a medicine used to prevent motion sickness in adults and children over 12 years old.
Form
tabletti
Strength
25 mg
Active Ingredient
Meclozine hydrochloride
Manufacturer
CampusPharma AB
How to Use
Dosage
The recommended starting dose for adults and children over 12 years old to prevent motion sickness is 1 tablet.
Method
Take the first tablet 1 hour before you travel. If the first dose doesn't work well enough, you can take a second tablet after one hour. Take the tablet with water.
Important
The maximum daily dose is 2 tablets (50 mg) per day.
Possible Side Effects
COMMON
- •Drowsiness
- •Tiredness
- •Feeling of exhaustion or weakness
- •Dizziness
- •Headache
- •Dry mouth
RARE
- •Hallucinations
- •Insomnia
- •Psychotic disorders (serious mental health problems)
- •Movement disorders (including Parkinson's-like symptoms)
- •Ringing in the ears (tinnitus)
- •Fast heart rate or palpitations
- •Constipation
- •Rash
- •Increased urine amount
- •Difficulty emptying the bladder (urinary retention)
- •Tingling or crawling sensation on the skin
- •Double vision
- •Blurred vision
- •Low blood pressure
- •Stomach pain
- •Diarrhea
- •Nausea
- •Vomiting
- •Hives
- •Severe allergic reaction (anaphylactic shock)
- •Loss of appetite
- •Increased appetite
- •Anxiety, strong feeling of happiness, irritability
- •Balance problems
- •Dryness in nose and throat
- •Difficulty urinating
- •Weight gain
Important Warnings
- Do not use Postafen if you are allergic to meclozine or any other ingredient in this medicine, or if you have severe liver problems.
- Be extra careful if you have an enlarged prostate, problems with urinating, glaucoma (high pressure in the eye), narrowing of the stomach, muscle weakness (myasthenia gravis), dementia, epilepsy, or stomach/bowel problems.
- Elderly people should use Postafen with caution, as they may be more sensitive to side effects like dry mouth, constipation, or difficulty urinating.
- Stop taking Postafen 4 days before an allergy test, as it might affect the test results.
- Do not use Postafen with medicines that slow down your brain and nervous system (CNS depressants).
Show 3 more warnings
- Do not use Postafen with alcohol.
- Do not drive or operate dangerous machines, as Postafen can make you sleepy and cause blurred vision.
- If you are pregnant, breastfeeding, or planning a pregnancy, ask your doctor or pharmacist for advice before using this medicine.
Use in Elderly Patients
Category D
Avoid use in older adults. Anticholinergic. Sedative. Increases risk of falls. Reduces the effectiveness of drugs for Alzheimer’s disease. (updated 19.9.2025)