“Bath salts are basically amphetamine derivatives and carry all the same cardiovascular risks,” which include hypertension, tachycardia, hyperthermia, diaphoresis, seizures, arrhythmias, and respiratory distress, says Lewis Nelson, MD, professor of emergency medicine, New York University School of Medicine, New York City. “And they can be deadly for people with underlying cardiovascular disease.” Cases of myocardial infarction, stroke, cerebral edema, coma, cardiovascular collapse, and death have been reported in people using bath salts. The effects of the drugs also vary based on the route of administration; they can be swallowed, snorted, injected, or inserted into the rectum or vagina.