So I introduced my 1 year old Persian to Catnip today. It came in the bag with his medicine. I put about 1/2 palm full into a sock and let him bat it around for 2 minutes. He went crazy! My normally docile cat was snorting and acting like he was a coke addict! I was nervous it might harm him so I took it away. I tried to google Catnip and see if there is any advice on 1) how much is too much 2) how long can I let him play with it and 3) is it safe to ingest. I actually found very vague answers. I put it away and now he's terrorizing me by following me around and meowing like a crazy man! I almost wish I never introduced him to it because I like to spoil him and I feel like I might make him sick if I give him too much. Advice?