a double-blind , random distribution study showed that a lower than recommended dose of minocycline -- 50 mg twice daily -- was as effective as a dose of 250 mg twice daily of tetracycline for treatment of acne vulgaris in comparable patient groups , and that minocycline produced no vestibular side effects at the lower dosage .
C0001144
acne vulgaris
C0026187
minocycline