A member asked:

I thought 5htp was supposed to make you drowsy. it makes me a little tired but gives me energy all at the same time. normal?

A doctor has provided 1 answer
Dr. Marybeth Lambe answered

Specializes in Travel Medicine

Possible Side Effect: 5-hydroxytryptophan (5-htp) converts, in uncertain amounts, to the brain chemicals serotonin and melatonin. Serotonin is an anti depressant also formed normally in the body but increased production--such as occurs by taking 5-htp--can have unpredictable effects. Likewise, melatonin, another brain chemical--when increased by 5-htp --can sometimes have an opposite effect like insomnia and agitation.

Answered 7/29/2013

5.3k views

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