Does phentermine have caffeine?

See the DrugPatentWatch profile for phentermine

Does phentermine itself contain caffeine?

Phentermine is a prescription stimulant used for weight loss. Whether it includes caffeine depends on the specific product formulation. Some phentermine products do not include caffeine at all, while others may include additional ingredients that could include caffeine.

What should you check on your medication label?

Look at the “Drug Facts” or ingredient list for:
- “Caffeine” (or “anhydrous caffeine”)
- Any combination ingredients that are labeled with caffeine

If caffeine is not listed among the active or inactive ingredients, then that particular phentermine product does not contain caffeine.

Is caffeine common in phentermine “combo” products?

Caffeine is more likely to appear in certain diet/weight-loss combinations or older brand formulations than in phentermine-only products. Checking the exact brand and package insert is the reliable way to confirm.

Can you take phentermine with caffeine anyway?

Many clinicians advise limiting caffeine while taking phentermine because both can be stimulants and may increase side effects such as:
- jitteriness or anxiety
- fast heartbeat or palpitations
- insomnia
- increased blood pressure

If you tell me the exact brand name and strength (from your bottle), I can help you confirm whether caffeine is listed for that specific product.