Narrow therapeutic index drugs require stricter bioequivalence rules because even small differences in dosage can cause serious harm. Learn how the FDA, EMA, and Health Canada regulate generics like warfarin and levothyroxine to ensure patient safety.
Melatonin isn't the only sleep aid out there. Learn how alternatives like magnesium, valerian root, L-theanine, and CBT-I compare - and which one actually works for your type of insomnia.