Periostat provides an adjunctive therapy for treating cases of chronic periodontitis. Distributed in the UK by Oraldent, Periostat is a prescription-only film-coated tablet containing a sub-antimicrobial dose of 20 mg doxycycline.

Because the underlying risk factors of periodontitis provide a boost for the enzymes that damage the periodontium and progress the disease, potentially leading to tooth loss, Periostat has been specifically formulated to suppress these enzymes.

Taken twice a day for at least three months as an adjunct to scaling and root planing procedures, it can reverse the disease process and inhibit the damaging collagenases that adversely affect tooth attachment.

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