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PrEP Education — HeyPrEP

Everything about PrEP,
explained clearly.

How PrEP works, who should take it, what the start-to-refill journey looks like, and every common question answered without clinical jargon.

What is PrEP

What is PrEP and how does it work?

PrEP (pre-exposure prophylaxis) is a prescription medication taken by HIV-negative people to prevent HIV infection. When taken as prescribed, daily oral PrEP reduces the risk of getting HIV from sex by up to 99%.

It works by keeping the virus from establishing an infection in your body if you're exposed. The antiretrovirals in PrEP block an enzyme HIV needs to replicate in your cells, so even if the virus enters your body, it can't take hold.

There are now four FDA-approved PrEP options: generic emtricitabine/tenofovir (oral), Descovy (oral), Apretude (injectable every 2 months), and Lenacapavir (injectable every 6 months, approved 2025).

Up to 99% effective

For people who take it consistently every day. For anal sex, protection is achieved after about 7 days.

One pill per day

Taken at the same time each day, with or without food. Most people experience no significant side effects.

Often $0/month

Under the ACA, most insurance plans cover PrEP at zero cost. Federal and manufacturer programs cover uninsured people.

Available online

Most providers offer fully online prescription and at-home lab kits. No in-person clinic visit required in most states.

💵 Cost and coverage

How much does PrEP actually cost?

Branded PrEP can retail at $1,500 to $2,200 per month before coverage, but almost nobody pays this. Three pathways bring the cost to $0 for most people in the U.S.

The short answer

If you have ACA-compliant insurance, PrEP medication, labs, and visits should be covered at zero cost. If you are uninsured, federal and manufacturer programs cover the medication for free. Very few people in the U.S. need to pay full price.

SituationCostProgram
Private insurance (ACA plan)$0ACA mandate
Uninsured, income-eligible$0Ready, Set, PrEP (federal)
Uninsured, any income$0Gilead Advancing Access
Medicaid$0-lowVaries by state
No coverage, no program$30-60/moGoodRx generic

🏠 Getting PrEP online

Can I get PrEP online without a doctor visit?

Yes, in most U.S. states. Every major telehealth provider on Hey PrEP offers a fully online path to a PrEP prescription. You complete a video or online consultation with a licensed clinician, skip the in-person clinic visit, and receive your prescription by mail or at a pharmacy.

Most platforms also send at-home lab kits so you can do your required 90-day HIV and kidney tests without leaving home. The only exception is injectable PrEP (Apretude, Lenacapavir), which requires an in-person clinic visit for the injection.

What telehealth PrEP actually involves

A short online health form (10-15 min) · A brief clinician review (usually within 24-48 hours) · An at-home lab kit mailed to you · Prescription shipped directly to your door · Automatic 90-day refills on most platforms

🕒 How long does it take?

How long until PrEP is effective?

Protection builds up in your body over several days of consistent daily use. The timing varies depending on the type of exposure.

Exposure typeDays to full protection
Receptive anal sex~7 days
Receptive vaginal sex~21 days
Injection drug use~21 days
Injectable ApretudeAfter 2 initiation shots (1 month apart)

Until you reach that window, using condoms alongside PrEP is recommended. Talk to your prescribing clinician about timing for your situation.

🗺️ The PrEP journey

From first question to first refill.

Step 1

🔍 Find your provider

Compare on Hey PrEP and take the quiz for a personalized match based on your insurance, state, and preferences.

5 minutes

Step 2

📋 Complete intake

Short online health questionnaire covering your medical history and sexual health. No in-person visit required.

~10 minutes

Step 3

🧪 Get tested

At-home lab kit mailed to you. You collect samples and mail them back. An HIV-negative result confirms you are ready to start.

Days 1-7

Step 4

💊 Start PrEP

Prescription ships to your door. One pill daily. Full protection for anal sex after 7 days of consistent use.

Week 1-2

Step 5

🔄 Stay on track

HIV test, kidney function check, and STI screening every 90 days. Most platforms automate refills and send reminder kits.

Every 90 days

💉 Injectable PrEP

Apretude vs Lenacapavir, injectable options.

Both injectable options eliminate the daily pill burden, a significant advantage for people who struggle with daily adherence or want more privacy.

Apretude (cabotegravir)Lenacapavir (Sunlenca)
FrequencyEvery 2 monthsTwice per year
FDA approval20212025
Efficacy~99%96-100%
Available onlineNo (clinic only)No (clinic only)
Cost (insured)$0 (ACA mandate)$0 (ACA mandate)

Important note

Injectable PrEP is not currently available through telehealth-only platforms. You need an in-person clinic that stocks the injection. Ask your local HIV clinic or federally qualified health center (FQHC) about availability.

🔬 Truvada vs Descovy

Which PrEP pill is right for you?

Both are FDA-approved daily oral PrEP pills with near-identical HIV protection, but they have meaningful differences in cost, approval, and side effect profiles.

Generic Truvada (TDF/FTC)Descovy (TAF/FTC)
Available since2012 (generic 2020)2019
Cost (generic)$30-60/mo (GoodRx)No generic yet
Approved for vaginal sexYesNo
Kidney/bone profileStandardGentler (TAF)
Efficacy for anal sexUp to 99%Non-inferior (equivalent)

Your telehealth clinician will review your medical history and recommend the best fit. Most can prescribe either. If you have pre-existing kidney or bone density concerns, ask specifically about Descovy.

✅ Am I eligible?

Who should consider taking PrEP?

Since 2021, the CDC and USPSTF recommend that any licensed provider can prescribe PrEP to any sexually active adult who asks. You do not need to prove risk or document specific exposures.

The thing nobody tells you

You do not need to prove you need PrEP. You do not need a list of partners or a specific risk profile. The CDC guidance is explicit: if you want PrEP and you are sexually active, that is enough. You just need to ask.

👬 Gay and bi men

Account for around 70% of new HIV diagnoses. PrEP reduces risk up to 99%. Most online providers were built with this community in mind.

🏳️‍⚧️ Trans women and men

Trans women face among the highest HIV rates of any group. Providers like FOLX and Q Care Plus offer gender-affirming care alongside PrEP.

🧑‍🤝‍🧑 Partner with HIV

Even if your partner is undetectable and on treatment, PrEP adds another layer of protection. Many couples use both strategies together.

🔄 Multiple or new partners

PrEP provides consistent, reliable protection regardless of condom use. Helpful when you may not know partners' HIV status.

🩺 Recent STI diagnosis

An STI in the past 6 months is one of the clearest clinical indicators for PrEP. STIs can increase HIV susceptibility.

💆 Peace of mind

Any sexually active adult can request PrEP without documented risk factors. If peace of mind matters, that is reason enough.

❓ FAQ

Your PrEP questions, answered clearly.

What is PrEP and how does it prevent HIV?+

PrEP (pre-exposure prophylaxis) is a prescription medication taken by HIV-negative individuals to prevent HIV infection. When taken consistently, daily oral PrEP reduces the risk of HIV from sex by up to 99% by maintaining drug levels in the body that block the virus from taking hold if you are exposed. It is recommended by the CDC for all sexually active adults and adolescents who want it.

How much does PrEP cost without insurance in 2026?+

Without any assistance, branded PrEP can retail between $1,500 and $2,200 per month. But very few people pay this. Three major pathways bring the cost to $0: the federal Ready, Set, PrEP program for uninsured Americans, ACA coverage for most private insurance plans with zero copay including labs, and Gilead patient assistance for uninsured patients. Generic emtricitabine/tenofovir is also available around $30 to $60 per month through GoodRx.

What is the difference between Truvada and Descovy?+

Both are FDA-approved daily oral PrEP pills. Generic Truvada (emtricitabine/TDF) has been available since 2012, is approved for all adults at risk including from vaginal sex, and is the cheaper option. Descovy (emtricitabine/TAF) uses a newer formulation that may be gentler on kidneys and bone density, but is not approved for people at risk from receptive vaginal sex. Your clinician can recommend the right option based on your history.

Does insurance cover PrEP?+

Under the Affordable Care Act, most private health insurance plans are required to cover PrEP medications, required HIV and STI screenings, and associated clinic visits with zero cost-sharing. This comes from the USPSTF Grade A recommendation for PrEP. Medicaid coverage varies by state and Medicare Part D covers PrEP medications, though cost-sharing rules may differ. Always verify your specific plan.

What testing is required while on PrEP?+

While on PrEP, you need testing every 90 days. This includes an HIV test to confirm you remain HIV-negative before each refill, a kidney function test to monitor side effects, and typically STI screening for gonorrhea, chlamydia, and syphilis. Most telehealth PrEP platforms send at-home lab kits so you can collect samples and mail them back without a clinic visit.

Is Hey PrEP affiliated with any provider?+

No. Hey PrEP is an independent comparison platform. We do not receive referral fees, affiliate commissions, or commercial compensation from providers listed on the site. If that ever changes, it will be labeled clearly and prominently.

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