WebConsequently any alteration in the activity of these enzymes may result in a modification of drug action. A wide range of chemically unrelated substances may stimulate the activity of the mixed-function oxidases by enzyme induction. The drugs most frequently encountered as enzyme-inducing agents in man are barbiturates, rifampicin and phenytoin. WebMitapivat. Modafinil. Nafcillin. Pexidartinib. Rifabutin. Rifapentine. Sotorasib. St. John's wort. For drug interaction purposes, the inhibitors and inducers of CYP3A metabolism listed above can alter serum concentrations of drugs that are dependent upon the CYP3A subfamily of liver enzymes, including CYP3A4, for elimination or activation.
Phenytoin injection Uses, Side Effects & Warnings - Drugs.com
WebCYP3A4 Inducers: Increase in trazodone dosage may be necessary ( 2.5, 7). ... 2.5 Dosage Recommendations for Concomitant Use with Strong CYP3A4 Inhibitors or Inducers. ... Increased serum digoxin or phenytoin levels have been reported in patients receiving trazodone concurrently with either of these drugs. Monitor serum levels and adjust ... WebCytochrome P450 3A (including 3A4) inhibitors and inducers For drug interaction purposes, the inhibitors and inducers of CYP3A metabolism listed above can alter serum concentrations of drugs that are dependent upon the CYP3A subfamily of liver enzymes, including CYP3A4, for elimination or activation. crafty ones fakenham
Is phenytoin an inducer or inhibitor? - Studybuff
WebA non-nucleoside reverse transcriptase inhibitor used as part of a management regimen for HIV-1 virus infection. Phenytoin: An anticonvulsant drug used in the prophylaxis and control of various types of seizures. Carbamazepine: An anticonvulsant used to treat various types of seizures and pain resulting from trigeminal neuralgia. Fosphenytoin WebConsequence Plasma phenytoin levels have been reported to increase, decrease, or not change upon the addition of phenobar-bital. This variability re ects the fact that phenobarbital is both a CYP enzyme inducer and an inhibitor. In most patients, only small changes in blood levels occur, and no dosage WebMembers of this subfamily are involved in many clinically important drug interactions. 1 Substrates, inhibitors and inducers of CYP3A are listed in Table 2. Substrates Amitriptyline * (Elavil) crafty on hamburglar