Drug of choice in the treatment of localized form of Juvenile periodontitis:
The regimen of tetracycline advised in JP is 250mg 6 hrly for 14 days and repeating for every 8 weeks up to 18 months.  Augmentin (Amoxcyllin 250mg + Clavulinate potassium 125mg) is another drug usually preferable in treating JP.
Metronidazole
Tetracycline
Pinicilline
Clindamycin