Can I Take Naproxen While Taking Phentermine?

Question

Asked by Lisa A.

Can I Take Naproxen While Taking Phentermine?

I have been taking Naproxen and Phentermine for the past 3 days. Days 1 and 2 seemed fine, however yesterday 3, I believe I had a bad interaction. Symptoms included severe restlessness while trying to sleep and multiple dizzy episodes upon standing.

Answer

The Drug Interactions checker at Drugs.com does not find any known negative interactions between these two drugs but they are careful to point out that they might have missed something.

Perhaps this is just a reaction to Phentermine? Common side effects for that drug include nervousness, overstimulation, restlessness, sleeplessness and it can also cause dizziness. Did you start taking the Phentermine 3 days ago as well?