Weight gain on medication

10000000% I’ve had that problem. I’m currently having that problem even! I’m also on 100mg and I saw a HUGE difference in my weight from when I was 50mg. I even saw a huge difference from 50mg-75mg. And then when I had to go up to 100mg I was super bummed. I take it for pain and the pain was just so bad I couldn’t decrease it.

Oh I'm on 150 mg of that I didn't gain any weight with that thank god I'm already obese enough. Sounds like you need to let your Dr know to take you off of it. Is it for sleep? That's what mine is for.

i am currently on 100 mg of amitriptyline. with the lower dose, the weight gain wasn’t as bad, but with the higher dose, the weight gain is becoming more noticeable

What are you currently taking that's making you gain weight? I had seroquel that made me gain 40 pounds it was horrible.