Clindamycin + Benzoyl Peroxide

Indications

Indicated in acne vulgaris.

Pharmacology

Clindamycin is a semi-synthetic derivative of lincomycin. It inhibits bacterial protein synthesis by reversibly binding to the 50S ribosomal subunits thus blocking the transpeptidation or translocation reactions of susceptible organisms.

Benzoyl peroxide has mild keratolytic effect and antimicrobial activity which is attributed to its potent oxidizing activity. Clindamycin and Benzoyl peroxide are both active against Propionibacterium acnes, an organism associated with acne vulgaris.

Dosage And Administration

Apply to the affected areas once or twice daily (morning and evening) after the skin is gently washed and patted dry.

Interaction

May enhance the action of neuromuscular blocking agents (e.g. atracurium). May antagonise the effects of parasympathomimetics. May competitively inhibit the effects of macrolides, ketolides, streptogramins, linezolid and chloramphenicol. Increased coagulation tests (prothrombin time/INR) and/or bleeding with vit K antagonists (e.g. warfarin, acenocoumarol, fluindione). PABA sunscreens may transiently discolour fabric.

Contraindications

Hypersensitivity to Clindamycin, lincomycin, benzoyl peroxide, or any component of the formulation; history of regional enteritis, ulcerative colitis, pseudomembranous colitis or antibiotic-associated colitis.

Side Effects

Application site pain, Application site exfoliation, Application site irritation, Erythema, Burning, Pruritus, Sunburn, Scaling, Drynes, Colitis, Peelin.

Pregnancy And Lactation

Pregnancy Category- C. Animal reproduction studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks

Lactation: Excretion in milk is unknown/ not recommended

Precautions And Warnings

Avoid contact with mouth, eyes, lips & mucous membranes; abraded or eczematous skin. May discolor hair & dyed fabrics. Pregnancy & lactation.

Therapeutic Class

Benzoyl peroxide, Azelaic acid & other preparations