The analgesic properties of PCP cause users to feel less pain, and persist in violent or injurious acts as a result.
THC in hashish can be detected by standard urine testing methods several days after a smoking session.
Short-acting prescription opioids cause a more severe and abrupt drug withdrawal because blood levels of the medication go up rapidly and come down rapidly.
Water toxicity among Ecstasy users can result in organ swelling and other internal disturbances including brain swelling which can lead to coma and death.