About

Acrivastine is a fast-acting, non-drowsy antihistamine used to relieve allergy symptoms. It works by blocking the action of histamine — a substance in the body that causes allergic reactions.

It is commonly used to treat:

• Hay fever (allergic rhinitis)
• Pet or dust allergies
• Skin allergies such as hives (urticaria)
• Allergic reactions causing itching, redness, or swelling

Acrivastine is usually available in the form of:

• Capsules
• Tablets
• Occasionally combined with pseudoephedrine for nasal congestion (e.g., acrivastine with pseudoephedrine capsules)

How and When to Use It

Take acrivastine exactly as directed by your doctor or pharmacist.

Dosage: The usual adult dose is one 8 mg capsule three times a day, as needed.

Acrivastine is not generally recommended for children under 12 years old.

Take each dose with a glass of water. It can be taken with or without food.

Do not exceed the recommended dose. If symptoms persist, consult your doctor.

Contraindications

Acrivastine should not be taken if you have:

• Allergy to acrivastine or any other antihistamine
• Severe kidney disease
• Are pregnant or breastfeeding, unless advised by a doctor
• Are taking other medications that cause drowsiness

Side Effects

Acrivastine is generally well tolerated, but like all medicines, it can cause side effects in some people.

Common side effects:

• Headache
• Drowsiness (less common than older antihistamines)
• Dry mouth
• Fatigue

Rare but serious side effects:

• Allergic reaction (rash, swelling, difficulty breathing)
• Palpitations or fast heartbeat
• Liver function changes (very rare)

Seek immediate medical attention if you experience swelling of the face, lips, tongue, or throat, or difficulty breathing.

Pregnancy, Breastfeeding & Fertility

There is limited information on the safety of acrivastine during pregnancy and breastfeeding.

It should only be used if clearly needed and recommended by a healthcare provider.

There is no known effect of acrivastine on fertility in men or women.

Interactions With Other Medications

Some medications and substances can interact with acrivastine:

• Alcohol (may increase drowsiness)
• Other antihistamines (can increase side effects)
• Sedatives, sleeping pills, or anxiety medications (may cause excessive drowsiness)
• Decongestants (if combined products are used)

Frequently Asked Questions