Ticarcillin clavulanate drug interactions
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mohamed Moubarak, M.D. [2]
Drug Interactions
- Aminoglycosides
The mixing of TIMENTIN with an aminoglycoside in solutions for parenteral administration can result in substantial inactivation of the aminoglycoside.
- Probenecid
Probenecid interferes with the renal tubular secretion of ticarcillin, thereby increasing serum concentrations and prolonging serum half‑life of ticarcillin. Probenecid does not affect the serum levels of clavulanic acid.
- Oral Contraceptives
Ticarcillin disodium/clavulanate potassium may affect the gut flora, leading to lower estrogen reabsorption and reduced efficacy of combined oral estrogen/progesterone contraceptives.
- Effects on Laboratory Tests
High urine concentrations of ticarcillin may produce false‑positive protein reactions (pseudoproteinuria) with certain methods. The bromphenol blue reagent strip test has been reported to be a reliable method for testing protein reactions [see Warnings and Precautions].
Clavulanic acid in TIMENTIN may cause a nonspecific binding of IgG and albumin by red cell membranes, leading to a false‑positive Coombs test. A positive Coombs test should be interpreted with caution during treatment with TIMENTIN [see Warnings and Precautions].[1]
References
Adapted from the FDA Package Insert.