Pharmacology General Pharmacology 3ab37e31

Rifampicin and ritonavir are:

Physical antagonist

Chemical antagonist

Pharmacokinetic antagonist

Competitive antagonist

High-Yield Explanation

Ans. C. Pharmacokinetic antagonista. Rifampicin is an enzyme inducer of CY3A4 and ritonavir is metabolized by CYP3A4.b. Thus rifampicin can antagonize ritonavir by inducing its metabolism; known as pharmacokinetic antagonism.

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Rifampicin and ritonavir are:

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