Prolongation of bleeding time and prothrombin time may be possible. Clamentin should be used with care in patients on anti-coagulation therapy.
In common with other broad-spectrum antibiotics, Clamentin may reduce the efficacy of oral contraceptives and patients should be warned accordingly.
Concomitant use of allopurinol during treatment with Amoxicillin can increase the likelihood of allergic skin reactions. There are no data on the concomitant use of Clamentin and allopurinol.
Concomitant use of Probenecid is not recommended. Probenecid decreases the renal tubular secretion of Amoxicillin. Concomitant use with Clamentin may result in increased and prolonged blood levels of Amoxicillin but not of clavulanic acid.