Is injectable PrEP as effective as pills?

Yes. In trials, long-acting injectable PrEP was highly effective at preventing HIV — in some studies more effective than daily pills, largely because there are no daily doses to miss.

What are the side effects of the PrEP injection?

The most common effect is an injection-site reaction — soreness, a small lump or redness where the shot is given — which usually settles within a few days.

What is the name of the PrEP injection?

There are two: Apretude (cabotegravir), given every 2 months, and lenacapavir, sold as Yeztugo, given twice a year.

PrEP Injection Guide: The Long-Acting HIV Shots (Apretude & Lenacapavir)

💉 Key takeaways

Two injectable options: Apretude (every 2 months) and lenacapavir / Yeztugo (twice a year).
No daily pill to remember — which makes them highly effective in real life.
Main side effect is a mild injection-site reaction that settles in days.
Given by a provider; you'll have a couple of starter doses, then a simple routine.

For years, PrEP meant a pill every single day. That works brilliantly — if you remember it. Injectable PrEP removes that "if" entirely: instead of 365 pills a year, you get a handful of shots from a provider and you're protected in between. For anyone who struggles with a daily routine, wants privacy, or simply prefers not to think about HIV prevention every morning, the long-acting shots are a genuine game-changer.

01. What is injectable PrEP?

Illustration of a person discussing injectable PrEP options with a provider

Injectable PrEP is long-acting HIV-prevention medicine given as a shot by a nurse or doctor, rather than swallowed daily. There are two:

Apretude (cabotegravir) — the first injectable PrEP, given once every 2 months.
Lenacapavir (brand Yeztugo) — a breakthrough option given just twice a year.

Both are for HIV-negative people, and both slowly release medicine that keeps a protective level in your body between visits. You don't handle needles yourself — a clinician gives the injection.

02. How the schedule works

Long-acting doesn't mean "one and done" — there's a simple rhythm:

Apretude: two starter injections one month apart, then one injection every 2 months (about 6 a year).
Lenacapavir: after the initial start, an injection just every 6 months — twice a year.

Your clinic tracks the dates and reminds you; some people set a calendar alert too. Staying on schedule is what keeps protection continuous.

Good to know: if you ever need to stop injections, your provider will usually bridge you onto daily pills for a while, because the medicine leaves the body slowly — so protection is never left to chance.

03. Apretude vs lenacapavir

Two shots, two rhythms. Here's the quick comparison:

Apretudecabotegravir · every 2 months

The established injectable. About 6 visits a year. Widely available and covered by many plans and its own assistance program.

LenacapavirYeztugo · twice a year

The newest option and the least-frequent dosing of any PrEP. Access programs are rolling out; ask your provider about availability.

Want the full picture including pills? See lenacapavir vs Apretude and compare all PrEP medications.

04. How effective are the injections?

Very — and in some trials, more effective than daily pills, precisely because there are no daily doses to forget.

~99%protection when on schedule

6/yrApretude injections

2/yrlenacapavir injections

“Long-acting injectable PrEP is a powerful new tool — especially for people for whom a daily pill is hard.”— World Health Organization

05. Side effects of the PrEP injection

The headline effect is local and mild — a reaction where the shot is given:

Infographic

Injection-site soreness / lumpmost common

Headachesome

Fever / tiredness (early)occasional

Most injection-site reactions settle within a few days; serious effects are rare.

Illustration of everyday life without a daily PrEP pill to remember

06. Injection vs daily pill — which is for you?

The shot shines if you find a daily pill hard to remember, want privacy (no pill bottle at home), or travel a lot. The pill shines if you prefer full control day-to-day, want the cheapest generic option, or like being able to stop instantly. Neither is "better" — it's about what fits your life.

Still weighing it up? The PrEP options guide lays out every route, and the 2-minute check can point you in a direction.

07. Cost & access

Injectables have a higher list price than generic pills, but most people still pay little or nothing: many insurance plans cover them, and both Apretude and lenacapavir have manufacturer assistance programs. Full breakdown in how much does PrEP cost, and find a provider who offers injections via our clinic locator.

Curious about the shot?

Find a clinic that offers injectable PrEP and ask which option fits you.

Find a clinic →

08. Frequently asked questions

QHow often is the PrEP injection?

Apretude is every 2 months (after two starter doses a month apart). Lenacapavir (Yeztugo) is just twice a year.

QWhat is the PrEP injection called?

There are two: Apretude (cabotegravir) and lenacapavir, sold as Yeztugo.

QDoes the injection hurt?

It's a quick shot in the buttock. The most common after-effect is soreness or a small lump for a few days — usually mild.

QCan I switch from pills to the injection?

Yes. Many people start on pills and switch to injections (or back) — your provider will plan the timing so you're never unprotected.

Keep reading

Lenacapavir vs ApretudeTwice a year vs every 2 months Compare all PrEP optionsPills vs shots, side by side Apretude in detailThe 2-monthly injection How much does PrEP costPrices & free options

© 2026 Prepmedication.com — free, medically-reviewed HIV-prevention education.
You're welcome to quote or share this article. If you republish or reuse any part of it, a visible link back to prepmedication.com is required.