Taper off!: You have likely become habituated to this medication. Putting multiple times recommended amounts of any substance or chemical is to be discouraged. There have been reports of overdoses with respiratory depression and hallucinations at high doses of benadryl (diphenhydramine). Your body will process what it can, store what it can't until you reach a toxic level. That level is different for everyone.
Answered 1/11/2019
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