Acne vulgaris
Adult: As soln: Apply bid to the affected area for 10-12 wk.
Elderly: Same as adult dose.
Child: Same as adult dose.
Elderly: Same as adult dose.
Child: Same as adult dose.
Indications and Dosage
Topical/Cutaneous
Acne vulgaris Adult: As soln: Apply bid to the affected area for 10-12 wk.
Elderly: Same as adult dose. Child: Same as adult dose. |
Contraindications
Hypersensitivity to erythromycin, zinc acetate, or other macrolide antibiotics.
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Adverse Reactions
Rarely, hypersensitivity, pruritus, dry skin, erythema; skin irritation, burning sensation and exfoliation.
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Patient Counseling Information
Avoid contact w/ eyes or mucous membranes of the nose and mouth.
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Overdosage
Symptoms: Idiosyncratic hypersensitivity. Management: Wash the treated area w/ copious water and simple soap.
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Drug Interactions
May occur cross resistance w/ other macrolide group antibiotics, and w/ lincomycin and clindamycin.
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Action
Description:
Mechanism of Action: Erythromycin exerts its antibacterial activity by inhibiting RNA-dependent protein synthesis at the chain elongation step. It binds to 50S ribosomal subunit which blocks transpeptidation. Zinc induces copper binding protein metallothionein production in enterocytes. Copper binding w/in enterocytes may impair intestinal absorption of dietary copper and reabsorption of endogenously secreted copper in saliva, bile, gastric acid. Onset: Zinc: Slow. Pharmacokinetics: Absorption: Penetrates independently. |
Storage
Store below 25°C.
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MIMS Class
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ATC Classification
D10AF52 - erythromycin, combinations ; Belongs to the class of topical antiinfective preparations used in the treatment of acne.
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References
Anon. Erythromycin (Topical). Lexicomp Online. Hudson, Ohio. Wolters Kluwer Clinical Drug Information, Inc. https://online.lexi.com. Accessed 16/03/2016. Anon. Zinc acetate. Lexicomp Online. Hudson, Ohio. Wolters Kluwer Clinical Drug Information, Inc. https://online.lexi.com. Accessed 16/03/2016. Joint Formulary Committee. Erythromycin with Zinc acetate. British National Formulary [online]. London. BMJ Group and Pharmaceutical Press. https://www.medicinescomplete.com. Accessed 16/03/2016.
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