Answer: Bioavailability is used to describe the fraction of an administered dose of unchanged drug that reaches the systemic circulation, so we need chemically stable drug in order to increase the chance of drug absorbance and thus increased bioavailability.
Answer: It would probably be legal to send them (i.e. you would not be guilty of smuggling), however, they would not be considered legitimately obtained in the US and so possessing them without a legitimate US prescription would not be legal.
Answer: Prescription drugs have an upside of having the highest quality control and can often be bought cheaper than their street analogs. The problem is that when a drug such as Oxycontin becomes highly popular on the street there will be a larger consumer(addict)base which includes people who had their first exposure to opiates in this form. If all of the sudden the FDA and law enforcement crack down on the pills there are all of the sudden hoards of junkies looking for anything to give them that fix. As addicts turned to heroin, overdoses run rampant.
Answer: This depends on the type of media, whether it is advertising, news, entertainment, etc. Advertising will only cause an increase in the use of socially acceptable drugs. News on the other hand typically shows the negative side of all types of drugs, assuming they have a non-biased viewpoint. Entertainment can have varying effects, based on what the target age group and kind of show it may be. Alltogether though, media does not tend to cause any type of increase or decrease in the use of drugs, but if you need to be specific, it does show a slight increase.
Answer: Concurrent use of psychotropic drugs and illegal drugs will put the user at a higher risk of having unprotected sex with multiple partners. Or not, just depends. At the very least the user will experience a sense of heightened arousal.
Answer: I believe 50/50. Some OTC drugs work better than Rx ones and vice versa. For high cholesterol I was taking a statin medication - after contracting drug reactions from statins, I switched (with doctors approval) to Niacin which is an OTC item. No ill effects anymore and my cholesterol readings are improving.
Answer: Because both nicotine and caffeine are stimulants - they would give a false reading on an EEG machine. Abstaining from smoking and drinking coffee for 24 hours before the test, would give a more accurate trace.
Answer: Yes, generic drugs are the same chemical as a brand name medication. An example is Clonazepam, the generic name of Klonopin. Both are the same things. Generic medications are cheaper than brand names because you are not paying for the advertising that the name has contributed to.
Answer: Im sure there are several. In all my collecting of partially useless information I have found that dubya dubya dubya dot EROWID dot org is an amazing drug resource that spans pharmaseuticals to all naturally occurring intoxicants. Specifically I would think any amphetamine, of which there are many, would show up. Dexedrine is the first to come to mind, or adderall....There are many drugs prescribed for ADD, ADHD, AADD, and other impulse controll behaviors and possibly for things like epilepsy. Its not concrete, but I hope it helped.