Also, check out http://www.dextroverse.org for all your DXM questions. They have a specific forum set up just for DXM combination questions.
liquid swords Reviewed by liquid swords on . Combining DXM and Benadryl I know this can be dangerous.. but would 300 mg of just DXM and 300 mg of just diphenhydramine be a safe combination? I've tripped on 754 mg of DXM alone before and 400 mg of diphenhydramine alone before. Rating: 5