For OTC / Perscription Fun, Try:

Percocets, Vicodins, Liquid COdeine, Misc. Opiates - Your painkillers, give you a decent body buzz. Mixes well with canabis if you're into zone-out highs. Taking too many will most likely kill your liver due to aceteminophen overdose. Do not mix with alcohol.

Ritalin, Adderall, Misc. Amphetamines - Your uppers. Causes hyperactivity both mentally and physically. Loss of appetite. Euphoria. Diliation of the pupils. Tachycardia. Hypertension. Postbaseline apathy, depression. Long term use can lead to psychosis.

Benzodiazepines - Tranquilizers / Antianxiety medicines. Slow you down. Mixes well with a lot of different things.

Selective Serotonin Reuptake Inhibitors - Your happy pills. Antidepressants. Makes you feel happy, creates a positive outlook. Abuse can lead to serotonin syndrome. Do not mix with cocaine, ecstacy, alcohol, or dextromethorphan. (Quite a long list of things to avoid with SSRI's/MAOI's, check up on it)

Dextromethorphan - Cough syrup. Causes disassociative feelings, hallucinations / paranoia / tachycardia / brain lesions / etc. Insane high at larger doses. Give yourself about 18 hours to baseline. Not a recreational drug. Make sure you're in a comfortable environment.

I'm hellishly stoned right now, so I'll stop here... but that's a good start, I think.

-Cin