How much weight gain can nortriptyline cause? is it similar to lyrica (pregabalin)?

Nortriptyline Lyrica (pregabalin): They may cause weight gain, but are very effective medications.

Variable.: Weight gain is a common, but not invariable side effect of nortirptyline. If one gets it, it is variable how far it goes. Both medicines can be helpful in pain and anxiety, and both can cause weight gain. But getting weight gain from one doesn't necessarily mean that you will get weight gain from the other.

Causes weight gain.: Variable, and seems worse in some women, but have seen as much as 15-20 lbs in one month. Not sure can compare side effects of Lyrica (pregabalin) with nortriptyline.