Many widely used copycat medications are seeing their prices fall at such a rapid rate that their makers are struggling to keep their heads above water.
Generic drugs account for more than 90 percent of U.S. prescriptions. Overcapacity and the emergence of big purchasing groups have slammed manufacturers' margins.
Insys Therapeutics Inc. founder John Kapoor is accused of helping fuel the U.S. opioid epidemic by bribing doctors to prescribe a powerful form of fentanyl to patients who didnt need the potent drug.