A member asked:

If i took wellobutrin xl 300 mg at 7am when will the effects wear off?

3 doctors weighed in across 2 answers
Dr. Heidi Fowler answered

Specializes in Psychiatry

Wellbutrin XL: The XL stands for extended relief. It works by increasing levels in blood over time. So, it should pretty much work throughout your day.

Answered 6/22/2020

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Long half life: Wellbutrin has a very long half life and stays in the body for days. It takes 7 hours to reach an effect. At 20 hours only half the dose has dissipated. At 40 hours 25% of the dose is still present if my math is correct. Your pharmacist can verify this.

Answered 6/22/2020

67 views

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