Generic drug shortages are caused by manufacturing failures, global supply chain concentration, lack of backup capacity, and profit-driven market pressures. Over 95% of shortages involve generics, with most stemming from single-source production and low margins.
Warfarin Genetics: How CYP2C9 and VKORC1 Variants Affect Bleeding Risk and Dosing
CYP2C9 and VKORC1 gene variants significantly affect warfarin dosing and bleeding risk. Genetic testing can reduce dangerous side effects by up to 32% in the first 90 days of therapy.