No! Most of the standard drug test (either 5 or 7), done by various laboratories (usually for employment or other general use) do NOT test for psilocybin or psilocin. Please note that it is possible to specifically test for psilocybin or psilocin; however, this is very rare and is NOT part of the regular drug tests. When going for a drug test, they usually also tell you what is being tested for.