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Int J Antimicrob Agents. 2007 Dec;30 Suppl 2:S118-21. Epub 2007 Nov 5.

Development of a twice daily dosing regimen of amoxicillin/clavulanate.

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Consultant in Pharmaceutical Medicine, Churt House, Deerleap Road, Westcott RH4 3LE, UK.


Amoxicillin/clavulanate was first launched as a three times daily dosage for the treatment of a range of community-acquired infections. A decade later, it became necessary to introduce a twice daily dosage for reasons of convenience, compliance and to remain competitive with other recently launched antibacterials. Twice daily formulations of amoxicillin/clavulanate were developed in which the amount of amoxicillin was increased relative to clavulanate to provide equivalent bacteriological and clinical efficacy with no change in the safety profile. Equivalence of the two dosing regimens was confirmed by randomised clinical trials in adults (in skin and soft tissue, urinary tract and lower respiratory tract infections, sinusitis and recurrent tonsillitis) and paediatrics (in lower respiratory tract infections, otitis media and recurrent tonsillitis). An improvement in the safety profile, specifically gastrointestinal effects, due to the reduced daily dose of clavulanate, was noted for all patients, but particularly in children.

[Indexed for MEDLINE]

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