What drugs does the army test for?

"Everything illegal. The most common that people pop positive for are marijuana and cocaine." Is what the last poster said.

This is a fallacy, and in no way answers the question.

There is no simple answer for your question as the system has undergone some recent updates, but I can tell you without a shadow of a doubt that they test for:

Marijuana (THC), Opiates, Amphatamine and similar compunds, Barbiturates, PCP, LSD, and a whole slew of perscription medications. They have recently added Spice to their randome testing program, but haven't named any specific compunds (Spice is a blanket term for herbs sprayed with a mind altering substance, typically a THC analogue, and packaged as "incense"), although one could assume that most of the JWH and AM compounds are tested for as they are the most commonly used. Substances that aren't tested for on a random basis include; DMT, Psilicybin, Muscimol, Salvia Divinorium, Shulgin compounds, steroids and an expanding variety of "designer drugs" just to name a few.

This is not to say that they can't test for these substances, just that they aren't included in the innitial randome phase of testing. If you are suspected of doing drugs, regularly tested for or not, you will have to submit a sample to a GS/MS machine that will break down the entire metabolite content of your urine. If they have previously identified the metabolite of the substance you took, they'll catch you.

You must also consider the amount of time it will take your body to process the metabolites out. While heavy use of THC could stay in your system for upwards of a month, other substances could be out within hours or days rendering a test useless.

This information is always subject to change as the Navy is always trying to expand its testing capabilities. For the most up to date information, you should do your research, especially if considering using anything, as the consequences for getting cought are quite severe (zero tolerance). All in all the risks are far to great for most people. Only a very small percentage of users go through naval service without getting cought.