codeine

The complaint also accuses Metro Boomin of “excessive codeine use,” which allegedly made his behavior “much less predictable.”

Xylazine, an animal tranquilizer which has caused chaos on the streets of Philadelphia, is now being found across the pond in bootleg codeine, tramadol, Valium and Xanax.

"I would drag myself in otherwise, on codeine, with heat patches plastered all over my body," she added.

Eventually, Horton found out that her urine came back positive for codeine — an opioid pain reliever typically used in cough medicine.

Other drugs in this category include Tylenol with codeine, steroids, testosterone and ketamine.