What strategies have you found helpful to manage SSRI associated night sweats?   

Reduced dose to the lowest effective dose. Gabapentin can be used off-label for hyperhidrosis and vasomotor symptoms of menopause. I had one patient on an SSRI for GAD and found the gabapentin helpful enough for anxiety that he tapered off the SSRI. If it is just night sweats, you can do a nightl...

Other than Dr. @Stuhr's comprehensive answer, there's also some evidence-based for using terazosin, which I've had success using with my patients.

Switch to Trintellix, a far superior medication in every possible way.

Below are the options I have either used or found helpful. I tend to stick with terazosin primarily but have sometimes found the others useful. I tend to find hyperhidrosis more of an issue with sertraline than other antidepressants so will change the medication if possible. The anticholinergic medi...