Interaction between Primidone and Sacituzumab govitecan
Major
Metabolism
| ID | DDInter1521 and DDInter1629 |
| Interaction | Coadministration with inducers of uridine diphosphate glucuronosyltransferase 1A1 (UGT1A1) may significantly decrease the plasma concentrations of sacituzumab govitecan and its pharmacologically active metabolite, SN-38. The proposed mechanism involves decreased exposure to SN-38, a topoisomerase I inhibitor linked to sacituzumab govitecan, which is metabolized via UGT1A1. Loss of antineoplastic efficacy may occur. |
| Management | Due to the potential loss of antitumour activity, concomitant use of sacituzumab govitecan with UGT1A1 inducers should be avoided. |
| References | |
| Alternative for Primidone |
N05C
More
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| Alternative for Sacituzumab govitecan | - |
Potential Metabolism Interactions
Substrate-Substrate Interaction：If more than one drug is metabolized by the same CYP, it is possible that its metabolism is inhibited because of the competition between the drugs. That means, it can be useful to lower the dosage of the drugs in the drug-cocktail because they remain longer in the organism than in monotherapy.
Inhibitor-Inhibitor Interaction：Combining two or more inhibitors of one CYP, should be compensated by lowering the dosage of these drugs because the metabolism is reduced and the drugs remain longer in the organism than in monotherapy. Not adapting the dosage bears the risk of even more side effects.
Inhibitor-Substrate Interaction：Combining drugs that have inhibitory effect and are substrates of one particular CYP, should be compensated by lowering the dosage. They rest longer in the organism than in monotherapy. Not adapting the dosage bears the risk of even more side effects.