Beta

"Beta blockers calm the nerves. These have been used, for example, by biathletes, pool players, and archers. They are detectable by urinalysis, and there is no known way to hide or disguise them because they must be taken just prior to the completion,"

"PCP is one of the most difficult drugs to clean from the body. It can appear in urine tests up to six months after just one use. It goes without saying, then, that PCP should be avoided at all costs institutions where drug testing is possible."

There is no way to obtain a prescription for PCP to legitimize its use, and there are no other drugs that will mess up the test." Pg. 30Pg,. 29"LSD and psilocybin (mushrooms) are hallucinogens. They each have different chemicals, but none are detectable by blood or urine tests.The reason is that the amount of each drug that a person would take to get high is minute. For example, there are only four nanographs oflysergic acid in an average hit of blotter acid (a type of LSD). The minimum standards used by drug testing labs vary, but they are hundreds of time higher than this. To my knowledge, there are no labs."

This is what Ed said.