Allerhist - 1

Warner Chilcott | Allerhist - 1 (Medication)


Allerhist-1/clemastine is used to treat sneezing, runny nose, itching watery eyes, hives, rashes, itching, and other symptoms of allergies and the common cold.

Allerhist-1/clemastine is an antihistamine that blocks the effects of the naturally occurring chemical histamine in your body. ...

Side Effect:

Most common side effects Allerhist-1 may cause are:drowsiness, dizziness, headache, constipation, stomach upset, blurred vision, trouble walking or clumsiness, or dry mouth, nose, or throat. If any of these persist or worsen, call your doctor.

More rare, but severe side effects include:mental or mood changes such as hallucinations, irritability, or nervousness, ringing in the ears, trouble urinating, easy bruising or bleeding, fast or irregular heartbeat, seizure. If you notice any of these seek medical help immediately.

Seek immediate medical care if you notice any of the following symptoms of an allergic reaction:rash, itching, difficulty breathing, closing of the throat, swelling of the lips, tongue, or face, or hives. ...


Before using this medicine inform your doctor if you are allergic to clemastine or if you have any other allergies. Inform your doctor if you are using other medicine and if you have or ever have had any of the following conditions:breathing problems such as asthma, or emphysema, glaucoma, heart problems, high blood pressure, liver disease, seizures, stomach problems like ulcers, or blockage, hyperthyroidism, or urination problems.

Because Allerhist-1 can cause dizziness and drowsiness, do not drive and use heavy machinery until you are sure you can perform this activity safely.

During pregnancy and breastfeeding is not recommended to use this medicine without your doctor's advice. ...