And (I have to ask this question): is that ALL that you are using? Sorry. I know it's a personal question. But needs to be asked around these parts i.e. too often a member will post that they're ONLY using substances a +b and then we all find out some posts later that the list is a fuck pile longer than a + b.
In not knowing the answer to the above I'd have to say that at bare minimum you should feel drowsy
Read this (side-effects):
en.wikipedia.org
Interesting to note that it's prescribe and used for its APPARENT OFF-LABEL effectiveness in treating anxiety disorders.
And be careful with this shit i.e. why are you going down this road at this time? Is this the first time? Klonopin has an extremely long half-life. Not something you can just keep dosing and dosing because the levels will rise and accumulate until you fall on the floor I'd say. Mind you: that's one way of seeing if they're legit I guess.
Word to the wise: if you search these forums you'll read some not too pleasant stories from members who have ended up dosing Klonopin and developed severe physical dependence and related side-effects. Guess my point is; you sure you want to go down this road and is it really necessary?
Also: are these legit prescription or street or DNM shit? If not legit prescription: could be a problem for you (if not outright dangerous). Point being: if not legit and not form a pharmacy you have no idea what you're getting i.e. there's more fake benzodiazepine presses floating around on the planet than there are users and addicts. It's a thriving business for sure.
So as to answer one of your questions directly: I don't see how popping one pill is going to relieve an anxiety disorder as if by magic and immediately. Sure if you get fucked on them you'll not be anxious (I assume) but then you won't give a fuck about anything else either. So does that mean they're effective?