Doxycycline may also be prescribed at a lower dose of 20 mg twice a day with the brand-name drug Periostat. Modified-release ...

doxycycline hyclate tablets of 20 mg strength, the company said in a regulatory filing. The approved ANDA is therapeutically equivalent to the reference listed drug product Periostat Tablets ...

1993). One study of patients with moderate acne showed that a submicrobial dose of doxycycline, 20 mg tablets twice a day, reduced total lesion counts, was well tolerated, had no detectable ...