Can phentermine cause liver damage?

Honestly, my liver is probably more damaged from my late-night coffee addiction than this pill, but yes, any strong medicine can stress your liver. Don't mix it with alcohol or other heavy pills, and let your doctor do their job of monitoring you.

I just started taking this weight loss pill and now I am really scared about my liver. Has anyone else here had their liver enzymes go up while on phentermine? I feel a bit fatigued and I'm wondering if I should stop it immediately.

Please get your liver tests done regularly if you are on strong weight loss pills. I ignored slight fatigue and yellowing in my eyes once, thinking it was just weakness, and ended up with severe liver inflammation. Get a doctor's checkup right away.

It is rare, but yes, phentermine can sometimes affect your liver. You should definitely get regular blood tests done under your doctor's supervision.

Phentermine itself is mostly excreted by the kidneys, but it can occasionally cause liver issues if combined with other medications or in people with pre-existing conditions. It's always best practice to get a baseline liver function test (LFT) before starting and check it periodically.