Q&A: Why do some prescription medication cause weight gain?

Question by .: Why do some prescription medication cause weight gain?
On a lot of prescription medication, it labels weight gain as a side effect. How can a prescription drug cause a person to gain weight? Do they slow the metabolism? Cause increased appetite?

Im taking 10mg of amitryptaline for migraines.


Best answer:
Answer by anonymousyes, both also if they cause drowsiness you don't feel like being as active

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symptoms of a migraine