Antihistamine Side Effect The Antihistamine Side Effect Guide You NEED! We often focus on the primary effects of drugs, but ignoring side effects can impact patient adherence and safety. Especially with antihistamines for common conditions like itching (pruritus) or allergies, understanding generations is key! First-Gen AH (e.g., Avil/Pheniramine, Atarax/Hydroxyzine, Diphenhydramine): 😴 Major Sedation ❤️ Tachyarrhythmias Dry mouth, constipation, urinary retention (Antimuscarinic effects) Second

Since histamine 1 and 2 are responsible for allergies, H1 blockers like zyrtec and H2 blockers, like Pepcid can help reduce the effects of an allergic reaction. “Since histamine 1 and 2 are responsible for allergies, H1 blockers and H2 blockers, such as Pepcid can help keep away allergies.” | Angela Pharmd

common OTC brands that include the antihistamine diphenhydramine include:BanophenSiladrylUnisom SleepGelsBenadryl-D Allergy Plus SinusRobitussin Severe Multi-Symptom Cough Cold Flu NighttimeSudafed PE Day/Night Sinus CongestionBenadryl. Other OTC medications containing first generation antihistamines are: diphenhydramine (Benadryl, ZzzQuil, Nytol, Sominex)chlorpheniramine (chlortrimeton)brompheniramine (Dimetapp)doxylamine (Unisom, Vicks NyQuil, Tylenol Cold and Cough Nighttime) Brompheniramine

Unlike the leading antihistamine eye drops, Alaway Preservative Free provides eye itch relief without the preservatives that can irritate eyes. | Bausch Lomb