Hey I was wondering if abusing antihistamines such as: Doxylamine, and Hydroxyzine is bad for my testosterone levels? I have a very bad habit I usually take a bunch of Doxylamine (Like 100-200mg) together with Hydroxyzine (200mg) Im just really hooked on them I love the way they make me feel even though that might sound dumb. I researched about this and found that they do reduce testosterone levels but do they reduce them by a significant level? Also to counter this I just started lifting weights and taking Vitamin D daily. I dont smoke weed I only do Doxylamine, Hydroxyzine, and Etizolam (2mg) maybe twice a week sometimes more. Will using these pills regularly kill my testosterone levels? I am just wondering because I was on Prozac before and it ruined my sex drive and stuff right now im recovering from it and was wondering if i should stop with the pills, thanks.