Yes it is overdose: took 6 25mgm caps makes150mgm.That is three times the maximum one time dose of 50mgm. can be taken every 6 to 8 hours.We don't know when you took it.Maximum daily dose is 300 mgm.Benadryl has a short half life&gets out of your system rapidly.It causes sleepiness,confusion,,ringing ears,blurred vision,dilated pupils,dry mouth,shaking,fever,insomnia,hallucinations,shaking&seizures.If any sympts goER
Answered 4/8/2017
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