I have a friend at school who quit smoking last year in January, and went back to it in October. I have no idea why, and he also started doing other drugs, such as smoking blunts, doing ecstasy, and taking steroids. The drug that I am worried about him doing the most is ecstasy, because it's a dangerous drug. Also, he is always talking about doing drugs. How can I help him? I still want him to be my friend. Please help. This is serious.

I have smoked marijuana on and off for about a year, not ever more than about once every other week. The last two times I smoked, I experienced uncontrollable tremors in my leg. It wasn't painful like a muscle spasm, but it was uncomfortable and unsettling. Was this merely nervousness (this was the first time I had people "over" at my own suite to smoke and I was a little worried that my roommates would be angry)? Or, could this be a side effect of the drug?

Lately, I have been doing a drug called Special K. I know it is a sedative/tranquilizer (what's the difference?), but very little about side effects, etc. Also, can you go over similar information about the drug X?

I have been a smoker for about 8 years and smoke about a pack per day. I am also an alcoholic and now drink about 7 to 10 beers a day, and have been for the past 2.5 years. Last night I decided to quit drinking beer every day and today I am already shaky, nervous, and can't concentrate. I want to quit smoking also so I can join the army. Is it dangerous to quit both at once? Would it be too much stress on my body and mind? And also, would having just one beer a day for the next couple days help with the withdrawal symptoms?

I used to be a heavy ecstasy user and now am clean from ecstasy. I find I can't ejaculate. Alice, I guess my question is would the ecstasy have affected me sexually, so that I can't ejaculate when I'm having sex?

I am a teenage girl currently taking Adderall (20 mg) to treat my ADHD. My question: does taking this medication affect sexual wantings or behavior? I am supposed to start taking it at 7:00am so it will wear out at about 9:00 or 9:30pm. Since I go out later at night, my medicine is usually worn off before I engage in any kind of sexual activity. But sometimes on weekends I wake up late and have to take it at later times such as 12:00 or 1:00pm. Since then it will not wear off until after I go out, would being on Adderall affect my sexual behavior? I feel like I am less "horny" when on Adderall and sex is worse because of the lack of my desires. Does this have anything to do with my medicine or is it just a coincidence?