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Indications

REMS

Contraind./Precautions

Contraindicated in:

Use Cautiously in:

Adv. Reactions/Side Effects

Endo: Graves' disease.

F and E: hypophosphatemia.

GI: ↑ liver enzymes, abdominal pain, autoimmune hepatitis, LACTIC ACIDOSIS/HEPATOMEGALY WITH STEATOSIS, POST-TREATMENT ACUTE EXACERBATION OF HEPATITIS B.

GU: ACUTE RENAL FAILURE/FANCONI SYNDROME, renal impairment.

Metab: ↓ weight.

MS: ↓ bone mineral density, bone pain, muscle pain, osteomalacia, polymyositis.

Neuro: Guillain-Barré syndrome, headache.

Misc: immune reconstitution syndrome.

Interactions

Drug-Drug:

Availability

(Generic available)

Route/Dosage

HIV-1 Infection

Renal Impairment

HIV-1 PrEP

US Brand Names

Truvada

Action

Therapeutic Effects:

Classifications

Therapeutic Classification: antiretrovirals

Pharmacologic Classification: nucleoside reverse transcriptase inhibitors

Pharmacokinetics

Emtricitabine

Absorption: Rapidly and extensively absorbed (93% bioavailable).

Distribution: Unknown.

Metabolism/Excretion: Undergoes some metabolism with 86% renally excreted and 14% excreted in feces as metabolites.

Half-life: 10 hr.

Tenofovir Disoproxil Fumarate

Absorption: Tenofovir disoproxil fumarate is a prodrug and undergoes hydrolysis to be converted to tenofovir, the active component.

Distribution: Unknown.

Metabolism/Excretion: 70–80% excreted unchanged in urine by glomerular filtration and active tubular secretion.

Half-life: 17 hr.

Time/Action Profile

(plasma concentrations)

ROUTEONSETPEAKDURATION
Emtricitabine POrapid1–2 hr24 hr
Tenofovir POrapid1–2 hr24 hr

Patient/Family Teaching

Pronunciation

em-tri-SYE-ti-been/te-NOE-fo-veer dye-soe-PROX-il FUE-ma-rate audio

Code

NDC Code*