Drowsiness, dizziness, constipation, stomach upset, blurred vision, or dry mouth/nose/throat may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.

Is Chlor-Trimeton the same as Benadryl?

Antihistamines. Active Ingredients: diphenhydramine, chlorpheniramine, loratadine, cetirizine, azelastine. Common Brand Names: Benadryl, Chlor-Trimeton, Claritin, Zyrtec, Allegra.

Does chlorpheniramine help you sleep?

Chlorphenamine is known as a drowsy antihistamine as it can make you feel sleepy. Non-drowsy antihistamines are less likely to have this effect.