A: Hi Jamie - Thank you for reaching out. We appreciate your interest in Diphenhydramine HCl Nighttime Sleep Aid Caplets. While not identical, Benadryl contains the active ingredient diphenhydramine HCl. Diphenhydramine HCl is the generic name for an antihistamine that can be used to treat allergies, cold symptoms, and also as a sleep aid due to its drowsy side effect. Therefore, Diphenhydramine HCl Nighttime Sleep Aid Caplets likely refers to a product that uses diphenhydramine HCl as its active ingredient to promote sleep, making it similar in function to the sleep-inducing effect of Benadry. Happy Shopping!! - Emma

A: Hello Munn- Thanks for checking us out. A soft gel is liquid filled pill and a caplet/tablet is a hard solid pill. Hope this helps -Beverly