Cause
LSD and possibly shrooms.
cocaine can kill you. enuf said
yes
Almost all drugs can cause flashbacks depending on the tolerance of the user, but Lysergic Acid (LSD) is the most commonly known flashback induced drug, some flashbacks occurring up to 3 years after the last dosage, but continued use prior to that period would be needed to induce such a flashback. The occasional use is unlikely to cause a further 'trip' later in life.
can drug use such as vicodin, methodone, or cocaine cause or contribute to gastritis?
No.
cocaine!
cocaine
Yes
There is pretty much nothing that would cause a false positive for cocaine. Good luck.
No. HGH is chemically nothing like cocaine.