White, plastic capsule with bitter-tasting granules inside

[kazhiana]

At scool, a friend of mine gave me a pill he claimed was prescription speed. I don't remember the imprint number (Might've been 16?), but it had bitter-tasting granules inside, which were easily accessed.
Please help, because I'm starting to get worried about the side effects. (Swollen tongue,loss of sense of time, tiny pupils, sleeplessness...)

[Cats Meow]

That's not enough information to go by, sorry. May I say, it's really dumb to take something that you don't even know exactly what it is. Would you take anything somebody gives you if they say it's good or does this or that? You could take something and die from it, is getting high worth the risk?

[kazhiana]

True, it was stupid...
but I did some research, and I don't think he was lying. Meth, or speed, is used as a treatment for ADHD. If I knew his number, I'd call him and scream at him. But the truth is that yes, I'd take it if someone said it was fun.

[Daigaisai_Taren]

Probably some extended release generic adhd medication, amphetamine or methylphenidate.