A member asked:

Does 80mg propanalol and 150mg of effexor (venlafaxine) cause lethargy?

8 doctors weighed in across 3 answers

Doses: Those doses of drug could potentially cause lethargy.

Answered 8/2/2013

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Dr. Alan Ali answered

Specializes in Psychiatry

Effexor (venlafaxine): Although Effexor (venlafaxine) can slightly increase blood pressure, the high dose Propranolol can lower it and attribute to lethargy. Review with your prescribing doctor.

Answered 6/30/2014

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Yes: Propranolol is more likely to cause fatigue than Effexor (venlafaxine) XR.

Answered 7/13/2014

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