PREP / PEP Flashcards
PrEP Meds Overview
The US Food and Drug Administration (FDA) has approved three medications for use as PrEP, which are listed below. Two consist of a combination of drugs in a single oral tablet taken daily. The third medication is a medicine given by injection every 2 months.
Injectable v Oral PrEP
Injectible when kidney disease exists, or can’t tolerate oral meds
PrEP Use Guidelines
Use CDC criteria but counsel all sexually active patients about it.
HIV Status
Check before prescripting PrEP
Testing before PrEP
Lipids, HIV, STI, HepB
Monitor while on PrEP
Creatinine Clearance, HIV, STI, Lipids
Time to PrEP Effectiveness (and wane)
7-10 days (21 for vaginal) for oral
Injectable unclear, but 1 month usually
2-1-1 or Event Driven Dosing
Oral for MSM. Take 2 pills 24 hours prior to planed sex, 1 pill 24 hours after first two pills, then 1 pill 48 hours after first two pills. Off-label use.
PEP Overview
PEP is the use of antiretroviral medication to prevent HIV infection in an HIV-negative person who has had a specific high-risk exposure to HIV. Must be done within 72 hours
PEP Prescribing
All persons offered PEP should be prescribed a 28-day course of a 3-drug antiretroviral regimen. Since adherence is critical for PEP efficacy, it is preferable to select regimens that minimize side effects, number of doses per day and the number of pills per dose.
The preferred PEP regimen for otherwise healthy adults and adolescents is tenofovir disoproxil fumarate (TDF) (300 mg) + emtricitibine (FTC) 200 mg) once daily PLUS raltegravir (RAL) (400 mg) twice daily or dolutegravir (DTG) (50 mg) once daily).
PEP Baseline Testing
Rapid HIV, Pregnancy, Liver enzymes, BUN/CR. STI, HepB, HepC. Start PEP before testing if time is an issue.