Side Effects of Chlorphenamine Maleate

Chlorpheniramine maleate is an antihistamine, and is used for the management and relief of allergy, common cold, and hay fever symptoms such as sneezing, stuffy or runny nose, itchy nose, throat, or eyes, rash, and watery eyes.

This medicine operates by obstructing the actions of histamine, which is a natural substance produced by the body. There are various possible side effects of Chlorpheniramine maleate.

Common Side Effects

The most common side effects of this antihistamine are upset stomach, dizziness, drowsiness, blurry vision, constipation, headache, dry mouth/throat/nose, and loss of coordination. These side effects happen frequently to users of this medication, and usually fade away quickly. If you have any of these side effects, and they persist, or get worse with time, you should alert your doctor of the situation.

Uncommon Side Effects

There are a handful of uncommon side effects that could occur with Chlorpheniramine maleate use. These unlikely side effects include mood or mental changes (such as nervousness, anxiety, irritability, and hallucinations), difficulty with urination, and ringing in the ears. If you have any of these unusual side effects, you should consult your doctor about them immediately.

Severe Side Effects

There are also some very severe and potentially dangerous side effects of Chlorpheniramine maleate. These side effects are rare and do not happen to most people using this antihistamine. They include bleeding or bruising easily, irregular or rapid heartbeat, and seizures. If you have any of these side effects, you need to seek emergency medical attention as soon as possible.

Allergic Reactions

Severe allergic reactions to Chlorpheniramine maleate are uncommon, but when they do happen, can be dangerous. If you notice any signs of allergic reaction, you need to get emergency assistance as soon as possible. Some signs to look out for include extreme dizziness, having problems with breathing, skin rash, and itching or swelling of the throat, face, or tongue.

The Elderly and Children

Elderly individuals and parents of children must be careful with Chlorpheniramine maleate. Elderly people and children are both significantly more sensitive to antihistamine effects. The elderly are more susceptible to becoming drowsy and dizzy due to this medication. It also might result in lower blood pressure with the elderly. With children, side effects like excitement and drowsiness might happen (as opposed to drowsiness).