Join Date: Sep 2009
Location: Greater Toronto Area
Kicks in at maybe 40 minutes for me, when swallowed. I usually dissolve them under my tongue though, so they kick in a lot more quickly.
If you're wondering if they take days or even weeks like antidepressants do, then no, klonopin works pretty much instantly.
My doc originally gave me 0.5mg twice day and it just made me kind of tired and flattened my mood. I talked to my doctor and now, I get the same overall amount per month (30mg), but I take 2mg when I feel like I need it, rather than twice a day, and I find it works a lot better like that.