| Generic TDF/FTC | Descovy (TAF/FTC) | |
|---|---|---|
| Active ingredients | Tenofovir disoproxil fumarate + emtricitabine | Tenofovir alafenamide + emtricitabine |
| Originally sold as | Truvada (Gilead) — generic since 2020 | Descovy (Gilead) — still brand-only |
| Dose | 1 pill daily | 1 pill daily |
| Efficacy | Up to 99% when taken daily | Up to 99% when taken daily |
| FDA approval for PrEP | 2012 | 2019 |
| Kidney effects | Small risk of kidney function decline with long-term use | Lower kidney impact (TAF is gentler on kidneys) |
| Bone density | Small decrease in bone mineral density | Less bone density impact |
| Cholesterol | Neutral to slight improvement | Slight increase in LDL cholesterol and triglycerides |
| Weight | Weight neutral | Small weight gain reported in some studies |
| Approved for vaginal sex PrEP | Yes — studied in cisgender women | No — not studied for receptive vaginal sex |
| On-demand dosing (2-1-1) | Supported by IPERGAY study for anal sex | Not studied for on-demand use |
| List price/month | $30–$60 (generic) | ~$2,200 (brand) |
| Free for uninsured? | No national program (Ready, Set, PrEP ended) | Yes — Gilead MAP (under 500% FPL, no SSN) |
| With insurance | $0 (ACA mandate) | $0 (ACA mandate + Gilead copay card) |
Which should you choose?
Choose generic TDF/FTC if:
- You're a cisgender woman at risk through vaginal sex (Descovy is not FDA-approved for this use)
- You want the option of on-demand (2-1-1) dosing rather than daily pills
- You're concerned about cholesterol or weight gain
- You're paying out of pocket and want the cheapest option (~$30–$60/month with GoodRx)
Choose Descovy if:
- You have any kidney concerns or reduced kidney function
- You're concerned about bone density (especially if you're older or have osteoporosis risk)
- You're uninsured and qualify for Gilead MAP — Descovy is free, while generic TDF/FTC has no free program
- Your telehealth provider prescribes it (most 340B platforms default to Descovy)
The honest take
Both drugs are excellent at preventing HIV. The side effect differences are real but modest for most people. The biggest practical factor in 2026 is cost and access: Descovy is free through Gilead MAP for uninsured patients, while generic TDF/FTC has no equivalent program since Ready, Set, PrEP ended. If you qualify for free Descovy, there's little reason to pay for generic.
What about injectable PrEP?
If you don't want to take a daily pill at all, two injectable options exist: Yeztugo (every 6 months) and Apretude (every 2 months). Both have patient assistance programs providing free medication to qualifying patients. See our complete injectable PrEP guide.
Important for women and people assigned female at birth
Descovy is not approved for PrEP through receptive vaginal sex because it wasn't studied in this population. If you're at risk through vaginal sex, your options are generic TDF/FTC (daily pill), Apretude (injection every 2 months), or Yeztugo (injection every 6 months). Talk to your provider about which is best for you.