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Many men searching for an erectile dysfunction (ED) medicine have the same questions. Is it legal here? Do I need a prescription? Is it safe with my other medicines? Online, the answers are often tangled up with overseas brand names, pharmacy advertising and products of unknown origin. Here is what the Australian sources say about avanafil.
This article is general information only. It is not medical advice, and it does not recommend any product or dose.
Is avanafil available in Australia?
Yes. Avanafil is approved by the Therapeutic Goods Administration (TGA) under the brand name Spedra, sponsored by A Menarini Australia Pty Ltd. The approved use is the treatment of erectile dysfunction in adult males.
The brand name matters when you’re reading around. Many overseas articles refer to the US brand, Stendra. In Australia, the name to look for is Spedra.
What kind of medicine is it?
Avanafil belongs to the PDE5 inhibitor group, the same broad class as sildenafil (Viagra) and tadalafil (Cialis). It is often described as a second-generation PDE5 inhibitor.
According to Australian Prescriber, it relaxes smooth muscle in the corpus cavernosum, the erectile tissue of the penis. This allows more blood to flow in during sexual stimulation. The phrase "during sexual stimulation" is important: the medicine supports the body’s normal response rather than creating arousal on its own.
How quickly does it work?
Avanafil is rapidly absorbed, reaching peak levels in the blood within 30 to 45 minutes. That is the main reason it features in speed-of-onset comparisons with older medicines.
Still, a blood-level figure is not a promise about how any individual will respond. Responses vary, and a doctor is the right person to discuss what to expect. This article doesn’t cover dosing or timing instructions, because those depend on the person and should come from a prescriber and the official product information.
Do you need a prescription?
Yes. Avanafil is a Schedule 4 (Prescription Only) medicine in Australia, so it must be prescribed by a licensed Australian doctor after an assessment. Healthdirect lists it in this category.
This requirement exists for good reason. ED can sometimes sit alongside other health issues, and the medicine has important interactions. A consultation is where a doctor can consider your heart health, your other medicines and what is most appropriate for you.
Is Spedra on the PBS?
Generally, no. The Pharmaceutical Benefits Scheme (PBS) information indicates that Spedra is not subsidised for general patients, which means it is supplied on a private prescription. The price is set by the pharmacy rather than by the PBS, so costs can differ from one pharmacy to another.
Subsidy listings can change, so check the current PBS website or ask your pharmacist if cost is a concern.
Safety: what matters most
Nitrates are a firm no
Avanafil must not be taken with nitrate medicines such as nitroglycerin (glyceryl trinitrate). The combination can cause a severe drop in blood pressure. It is also contraindicated with strong CYP3A4 inhibitors, a group of medicines that affect how the body processes avanafil.
You don’t need to memorise these terms. You do need to tell your doctor and pharmacist about everything you take, including prescription medicines, over-the-counter products and complementary medicines.
Common side effects
The side effects most often mentioned for this class of medicine are headache, flushing and nasal congestion. This list isn’t exhaustive. The Consumer Medicine Information leaflet for Spedra, available from your pharmacist or the TGA, is the right place for the full list and for advice on when to seek urgent help.
Heart health and other medicines
Blood pressure and cardiovascular health are key considerations, so a doctor will usually want a fuller picture than just "I’d like to try something for ED." Questions about medicines for blood pressure or heart conditions are worth raising directly.
Practical examples of how this plays out
These are general illustrations, not real case studies.
- Someone who uses a nitrate medicine. If a person has been prescribed glyceryl trinitrate, avanafil is not an option because of the risk of a severe blood pressure drop. Telling the doctor this at the start prevents a dangerous mismatch.
- Someone comparing options. A man who has read that avanafil reaches peak blood levels in 30 to 45 minutes might want to ask whether that matters for him. His doctor can talk through the available PDE5 inhibitors and which suits his health and circumstances.
- Someone considering an overseas website. The price or the promise of no consultation may be tempting, but this is exactly the situation the TGA warns about.
Why overseas online purchases are risky
The TGA strongly advises against buying unapproved ED products from overseas websites. Such products may contain the wrong amount of active ingredient, toxic contaminants or prescription ingredients that aren’t listed on the label. Because the product hasn’t been assessed, you can’t be sure what you’re taking, and you can’t check it against your other medicines.
The safer route is to see an Australian doctor, either in person or through a legitimate telehealth service, and have any prescription filled at a registered Australian pharmacy.
What is proven, what is early research, and what is traditional use
Approved use. The TGA-approved use of avanafil is the treatment of erectile dysfunction in adult males, under medical supervision.
Early research. Scientists have studied how selectively avanafil acts on PDE5 compared with related enzymes such as PDE6 and PDE1. There is also interest in how it might perform in particular groups of people with other health conditions. This work is early. It doesn’t change the approved use, and it shouldn’t be read as evidence of other benefits.
Traditional use. There is none. Avanafil is a synthetic pharmaceutical compound with no herbal or traditional medicine history, so be sceptical of any product that links it to "natural" remedies.
Frequently asked questions
Is avanafil the same as Spedra?
Avanafil is the active ingredient. Spedra is the brand approved in Australia.
Can I get it without seeing a doctor?
No. It is a Schedule 4 medicine, so a prescription from a licensed Australian doctor is required.
Is it cheaper on the PBS?
Generally it is not PBS-subsidised for general patients, so it is supplied on a private prescription. Check current PBS information or ask your pharmacist.
Can I take it with other medicines?
Not always. Nitrates and strong CYP3A4 inhibitors are contraindicated. Your doctor or pharmacist should review everything you take.
Is it safe to order from overseas?
The TGA advises against it. Unapproved products may be contaminated or contain incorrect or undeclared ingredients.
In short
Avanafil is a legitimate, TGA-approved option for ED in Australia, sold as Spedra and available only on prescription. It works within a well-understood drug class, and its rapid absorption is its main point of difference. Its safety depends on checking your medicines and cardiovascular health first, particularly for anyone taking nitrates. For personalised guidance, speak to your doctor or pharmacist, and avoid unapproved overseas suppliers.
Urgent symptoms: stop taking the medicine and seek urgent care for an erection lasting more than four hours, sudden sight or hearing loss, or a serious allergic reaction. For chest pain, stop sexual activity and call 000 in Australia; do not take GTN or other nitrates yourself. Tell emergency staff which ED medicine you took and when. Do not drive yourself if seriously unwell.
Do not combine ED tablets or add extra doses yourself. Tell your prescriber about nitrates, poppers, riociguat, alpha-blockers, blood-pressure medicines, antibiotics, antifungals and HIV medicines. Suitability and interactions depend on the exact product and your health.
Sources and further reading
More information: Good Med Australia health guides.