OAT at the pharmacy: long-acting injectable buprenorphine explained

For decades, Opioid Agonist Treatment in Australia mostly meant a daily visit to a community pharmacy for a supervised dose of methadone or sublingual buprenorphine. It works, but it ties people to a counter. Long-acting injectable buprenorphine has changed that. A single subcutaneous injection slowly releases medication over a week or a month, meaning fewer pharmacy visits, no take-away doses to manage, and more practical room for work, study, family and travel.

How the medication works

Buprenorphine is a partial opioid agonist. It binds to the same receptors as opioids like heroin or oxycodone, but in a way that stabilises rather than intoxicates. At a steady dose it eliminates withdrawal, reduces cravings, and blocks the effects of other opioids. The long-acting injectable formulations release medication gradually over days or weeks, holding plasma levels steady without the daily peak-and-trough of oral dosing.

Two interval options are commonly used in Australia: a weekly formulation and a monthly one. Your prescriber chooses based on your treatment plan, lifestyle, and history.

What an appointment looks like

1. You arrive at a pre-booked time, the schedule is recurring once you are stabilised.
2. The pharmacist takes you into a private consultation room, not the open dispensary counter.
3. A brief check, identification, last dose date, anything you want to flag.
4. The injection itself is given just under the skin (abdomen, thigh or upper arm depending on the formulation). It takes seconds.
5. A short observation follows, in line with the manufacturer's post-injection protocol.
6. You leave with your next appointment booked.

First visit: about 30 minutes. Subsequent visits: about 15.

Privacy, what does the pharmacy actually know about me?

Your treatment record sits on the pharmacy clinical system, governed by the Health Records Act 2001 (Vic) and the Privacy Act 1988. Only the staff directly involved in your care can access it. We do not share information with employers, family members, or anyone else without your written consent. We notify SafeScript and your prescriber where Victorian regulations require it, that is standard for any Schedule 8 dispensing and applies whether you are at this pharmacy or any other.

The Australian Immunisation Register is an immunisation register and is not used for opioid-dependence treatment.

Who prescribes and how do I start?

OAT is a clinical decision led by a doctor authorised to prescribe under the Victorian opioid-dependence treatment program, typically a GP, addiction-medicine specialist, or community-health doctor. The pharmacy administers the dose, the prescriber drives the plan. If you do not have a prescriber, free services like DirectLine (1800 888 236) can refer you. The Pharmacy Guild and most community health centres in Melbourne's west also keep lists of nearby prescribers.

What about travel?

This is one of the clearest advantages of long-acting injectable formulations. With a weekly or monthly schedule, short trips no longer require complex take-away arrangements. For longer travel, your prescriber can adjust timing ahead of your departure. Talk to us at least two weeks before you fly, ideally further out.

Cost

Pricing of Schedule 8 medications is not advertised publicly under the Therapeutic Goods Advertising Code. Costs depend on your prescription and PBS eligibility, your prescriber can discuss out-of-pocket costs with you, or call us privately on (03) 9364 7133.

If you are weighing whether to start

OAT, like any treatment, is a personal decision made with a doctor who knows your history. It is more effective at reducing overdose risk, infection risk, and improving quality of life than no treatment. It is also one of the most studied medications in modern medicine. There is no judgement at our pharmacy if you want to come in just to ask questions, that is what we are here for.

Read more on the OAT pharmacotherapy service page or call us on (03) 9364 7133.