Toxicity from the use of niacin to beat urine drug screening.

Niacin (vitamin B3) is promoted for rapidly clearing the body of drugs of abuse, such as cocaine and cannabis, and is alleged to interfere with urine drug screening. We present 4 cases of such novel use associated with significant adverse effects. Two cases had isolated skin manifestations, whereas the other 2 presented with life-threatening manifestations, including nausea, vomiting, dizziness, hepatotoxicity, metabolic acidosis, and hypoglycemia evolving into hyperglycemia.

Calcium and beta receptor antagonist overdose: a review and update of pharmacological principles and management.

Calcium channel and beta-adrenergic receptor antagonists are common pharmaceutical agents with multiple overlapping clinical indications. When used appropriately, these agents are safe and efficacious. In overdose, however, these agents have the potential for serious morbidity.

Polymer fume fever-like syndrome due to hairspray inhalation.

Inhalation of fluoropolymer pyrolysis products causes a self-limited illness termed polymer fume fever; symptoms include fever, chills, myalgias and non-productive cough, and are easily mistaken for an acute viral illness. We report a 29-y-old male who developed fever and pneumonitis shortly after the inhalation of pyrolyzed hairspray. Chest x-rays showed pictures consistent with pneumonitis.

Acute, transient urinary retention from combined ecstasy and methamphetamine use.

Methamphetamine and 3,4-methylenedioxymethamphetamine (MDMA or "ecstasy") are synthetic amphetamine analogs that have become increasingly popular, particularly among adolescents and young adults. Many deleterious physiologic effects arising from the use of these agents have been well documented in the medical literature. Urinary retention, however, has rarely been reported as an effect of MDMA or methamphetamine use and is thought to occur as a result of alpha-adrenoceptor stimulation of the bladder neck.