Please forgive me if I posted this in wrong section. Now I understand that this isn't really a "Fun" trip but it's something I want to experience first hand and hopefully will make me appreciate being sober more. I want to take about 16-18 benadryls 25mg per pill. My questions are is this harmful for a one time thing? What should I expect? If you really encourage me not to do this then why? The only active ingredient is diphenhydramine and I am a big guy 6ft 210 lbs so 400mg may also not hit me as hard as others.