Information about Clemastine

Generic Name : Clemastine
Up-to-date prescription details regarding Clemastine are provided here.

Pronunciation : klem' as teen

Learn the correct pronunciation of the Clemastine, understand it's uses, recommended dosages, its indications, how to take, when to take, when not to take, side effects, special precautions, warnings and its and its storage instructions.

You will also find a list of the medication's International and Indian brand or trade names, as well as its pricing information. For verification of the information presented on this page or for additional clarifications, it's advisable to consult your doctor.

ICD Code : Y43.0 Therapeutic Classification : Antihistamines

Trade Names/Brand Names of Clemastine

India :

More info >>>

International :

Allerhist-1 and Tavist-1

Why is Clemastine Prescribed? (Indications)

This medication is an antihistamine and anticholinergic agent, prescribed for allergic rhinitis. It is also used for uricaria and angioedema. This medication inhibits the effect of histamines in the body.

When should Clemastine not be taken? (Contraindications)

Contraindicated in patients with increased eye pressure, breastfeeding women, newborns and hypersensitivity.

What is the dosage of Clemastine?

Adult: PO- Allergic conditions- 1 mg twice daily, up to 6 g/day.
IV- Prophylaxis of acute allergic conditions- 2 mg/day.
IV/IM- Acute allergic reactions- 4 mg/day.

How should Clemastine be taken?

It comes as a tablet to take by mouth, with or without food.

What are the warnings and precautions for Clemastine?

• Caution should be exercised in patients with history of asthma or other respiratory problems, increased eye pressure, ulcer, difficulty in urinating, blockage of the stomach, intestine, or urinary tract, heart disease, high blood pressure, seizures, overactive thyroid, any allergy, who are taking other medications, elderly, children, during pregnancy and breastfeeding.

• It may cause drowsiness or dizziness, do not drive a car or operate machinery while taking this medication.

• Avoid alcohol consumption.

What are the side effects of Clemastine?

Central Nervous System - Drowsiness, CNS depression, dizziness and sedation.
Gastrointestinal - Diarrhea, constipation, nausea and vomiting.
Heart - Low blood pressure, headache, palpitations and fast heart rate.
Genitourinary - Urinary frequency, difficult urination, urinary retention and early menses.
Miscellaneous - Blurred vision, thickened respiratory secretions and ringing in the ear.