What age and how much benadryl within what time frame? Wat type of benadryl?

Some medication can slow down the respiratory system

Here are the side effects of an overdose for benadryl allergy decongestant:

Overdose symptoms may include feeling restless or nervous, nausea, vomiting, stomach pain, dizziness, drowsiness, dry mouth, warmth or tingly feeling, or seizure (convulsions).

well he is 16 and it was with in like a day and a half i believe it was like 50mg every four hours for dry skin which i have never heard of he was very clumsy and his speech was all messed up whe he talked you might have been lucky to get a word or so of what he was trying to say they did say he had to much in his system however i want to know would it have caused lack of oxygen to the brain or not thank you

I'm not for certain but it may.

Some teens (and adults) will overdo it on over the counter medications to get a high or don't follow directions.

I'm not saying this is what happened with your son.

I do hope he is ok.

he didnt do to self this is while he was in a hospital

oh my, the hospital did this? Personally I would be questioning the doctor and administator about this.

Since he was in the hospital they may have given him additional medication that could have affected him as well.

I have nothing else to offer; I do hope that he is OK.