5 doctors weighed in:

Do phentermine pills have caffeine in them?

5 doctors weighed in
Dr. Maritza Baez
Family Medicine
3 doctors agree

In brief: No

No. It's a sympathomimetic, but the exact mechanism of action is unknown.

In brief: No

No. It's a sympathomimetic, but the exact mechanism of action is unknown.
Dr. Maritza Baez
Dr. Maritza Baez
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Dr. Ray Holt
Family Medicine
1 doctor agrees

In brief: No

We're not sure how Phentermine works to help with weight loss, but it can raise your heart rate and blood pressure similar to caffeine.

In brief: No

We're not sure how Phentermine works to help with weight loss, but it can raise your heart rate and blood pressure similar to caffeine.
Dr. Ray Holt
Dr. Ray Holt
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