Ativan, 0.5 mg, wasn't strong enough for me. I usually take Klonopin, 0.125 mg, daily, but I have 0.5 mg for REALLY bad days. I can't take it every day, though, because it makes me incredibly tired...

But, the 0.125 Klonopin works within 15 minutes, but I still get panic attacks later in the day. Like, I didn't take it today, and I've had a panic attack for about five hours, but even if I would've taken it, the panic attack would've come back anyway. I wouldn't say it helps with my OCD directly, though, just my panic attacks.
-GatsbyLuvr1920-