Pharmacokinetics and drug-drug interactions – Nadia Naous Welcome to your Pharmacokinetics and drug-drug interactions - Nadia Naous Pharmacokinetics describes the relationship between the concentration of a drug at the site of action and the response produced by that druga. Trueb. False P-glycoprotein is a drug transporter that is found only in the livera. Trueb. False Calcium supplements should:-a. Be taken 4 hours either side of dolutegravirb. Be taken 2 hours after or 6 hours before dolutegravirc. Be taken at the same time as dolutegravir on an empty stomachd. Never be taken with dolutegravir Rilpivirine is an inducer of the CYP4503A4 enzymea. Trueb. False Inhaled budesonide does not interact with any antiretroviralsa. Trueb. False Time is Up!