Author: Daniel Hart, Men’s Health and Wellness Writer
Let’s get something out of the way first. Erectile dysfunction is common. Very common. And yet most men spend years either quietly suffering through it or Googling things at midnight rather than having an actual conversation with a doctor.
I get it. It’s an awkward topic. But it really doesn’t need to be, especially now that the information is out there and the treatment options are genuinely good.
So let’s talk about it properly. What ED medications actually are, how they work, what the differences are between them, and what you need to know before you start taking anything.
What Is ED and How Common Is It Actually?
Erectile dysfunction is when you can’t get or keep an erection firm enough for sex. Not occasionally, which happens to basically everyone at some point, but persistently or regularly enough that it’s becoming a problem.
It’s a very common condition, affecting up to half of men aged 40 to 70 in Australia. That’s not a small number. That’s a lot of blokes quietly dealing with something that has real, effective treatments available.
Prevalence increases with age, from around 6% of men in their 40s to more than 60% of men aged over 70. But it’s worth saying clearly: ED isn’t just an older man’s problem. Sometimes, even younger men can experience ED, and the causes can be physical, psychological, or a combination of both.
ED is also associated with chronic conditions, including cardiovascular disease and diabetes, and it can actually be an early warning sign of those conditions. That’s an important point we’ll come back to.
How ED Medications Actually Work
Most ED medications work in the same basic way. They belong to a class called PDE5 inhibitors.
ED medicines work by improving blood flow to the penis. This helps you to get and keep an erection. The medicines inhibit the action of the PDE5 enzyme, which helps relax the blood vessels in the penis and allows increased blood flow.
Here’s the thing people often misunderstand though. PDE5 inhibitors combat ED by increasing blood flow to the penis when you get sexually excited. They are generally recommended to be taken one hour before sexual activity.
They are not a magic switch. They don’t create desire. They don’t work if you’re not aroused. Think of them as removing a physical obstacle rather than creating a new experience. The desire and stimulation still need to be there. This article covered this in more detail.
The Main Options Available in Australia
The PDE5 inhibitors available in Australia are sildenafil (for example, Viagra), tadalafil (for example, Cialis), vardenafil, and avanafil (Spedra). Your doctor will prescribe the ED medicine that is right for you and the dose you need.
They all work through the same basic mechanism but have some practical differences worth knowing about.
Sildenafil (Viagra)
Viagra (sildenafil) was the first oral medication approved to treat erectile dysfunction. Its release helped break the stigma around ED and opened up broader public conversation about men’s sexual health.
Sildenafil usually takes about 30 minutes to start working. The recommended starting dose is 50mg, usually taken on an empty stomach, as food can slow its absorption. It typically lasts around four to six hours.
Tadalafil (Cialis)
Tadalafil is known for its longer-lasting effects of up to 36 hours, earning it the nickname “the weekend pill.”
Your doctor may prescribe tadalafil to be used daily at a low dose, or only when needed. If you plan to use it as needed, take it 30 to 60 minutes before planned sexual activity. Your doctor may recommend the daily pill if you have erectile dysfunction and expect to engage in sexual activity more than twice a week.
Tadalafil also relaxes the blood vessels and muscles in the bladder and prostate, so it can also help men who have urinary symptoms from an enlarged prostate. That dual benefit makes it a particularly useful option for older men dealing with both issues.
Vardenafil (Levitra)
Vardenafil is similar to Viagra, typically starting to work within 30 minutes and lasting up to five hours. The recommended starting dose is 10mg, though most men find they need 20mg.
Avanafil (Spedra)
The advantage of avanafil is that it has a very fast onset of action compared with other PDE5 inhibitors, reaching maximum concentration in about 30 to 45 minutes. It’s a newer option and may suit men who want something that works quickly without planning too far ahead.
Which One Is Right for You?
Honestly? That’s a conversation to have with your doctor, not a decision to make from a comparison table online.
When comparing options, it’s important to rely on scientific evidence and consult with healthcare professionals rather than marketing claims.
What I can tell you is that different medications suit different lifestyles. If spontaneity matters to you, tadalafil’s longer window or daily dosing option might appeal more. If you only need something occasionally and want it out of your system quickly, sildenafil or avanafil might be a better fit.
According to research in the European Urology Journal, when patients were given the choice between sildenafil and tadalafil after trying both, around 70% preferred tadalafil, primarily because of its longer duration and the reduced pressure to time sexual activity. But preferences vary, and what works well for someone else might not be the right fit for you.
Side Effects You Should Know About
These medications are generally safe and well-tolerated, but they do have side effects and they’re not suitable for everyone.
Side effects can include headaches, flushing, blocked nose, indigestion and dizziness. In rare situations, sildenafil and vardenafil can cause distortion of vision or a change in colour vision. Tadalafil has been associated with back pain.
Most side effects are mild and pass fairly quickly. But there are some situations where these medications are not safe to take.
Men taking nitrates, often used to treat angina, should never take PDE5 inhibitors. The combination can cause a dangerous drop in blood pressure.
Tadalafil may not be safe for people with certain medical conditions including non-arteritic interior ischaemic optic neuropathy, an eye disease causing loss of vision in one eye. It can also interact with many medicines, particularly blood pressure medicines.
This is exactly why a proper medical consultation matters before starting any of these medications. It’s not just box-ticking. It’s a genuine safety check.
ED Can Sometimes Be a Sign of Something Bigger
This is the bit most people skip past, but it’s worth taking seriously.
ED is associated with a higher-than-normal risk of having a heart attack or stroke. PDE5 inhibitors should not be used recreationally or for performance enhancement, because they can have serious side effects in people with health problems they may be unaware of.
ED may be an early warning sign of cardiovascular disease. When a GP discusses it with a patient, they might frame it by saying that problems with erections can indicate a higher risk for future health problems such as heart disease, making it an important issue to take seriously.
The blood vessels in the penis are smaller than those supplying the heart. When blood flow is compromised, the penis often shows signs before the heart does. So if you’re dealing with ED, particularly if you’re otherwise relatively young and healthy, it’s worth getting a proper cardiovascular check done at the same time.
What About Lifestyle? Does It Actually Make a Difference?
Yes, genuinely. Lifestyle changes recommended alongside or before medication include smoking cessation, reduced alcohol intake, improved diet and exercise, weight loss, stress reduction, stopping illicit drug use, and compliance with diabetes and cardiovascular medications.
That list might look overwhelming but each item on it independently improves blood flow, hormone levels and general vascular health, all of which directly affect erectile function. For some men, lifestyle changes alone resolve or significantly reduce ED. For others, medication plus lifestyle changes works better than either alone.
Getting a Prescription: What the Process Actually Looks Like Now
In Australia, you need a prescription to get ED medicines. This means you must first see a healthcare professional such as a doctor or a specialist.
That used to mean booking an in-person appointment and having a conversation you’d probably rather not have in a waiting room. It’s much more straightforward now.
Telehealth has made this significantly easier. Platforms like Pilot, Mosh, and similar Australian men’s health services allow you to complete a consultation online, have a registered doctor review your case, and receive an electronic prescription sent directly to your phone, which you can fill at any pharmacy or have delivered to your door in plain packaging.
It is not safe to buy tadalafil or other ED medications online without a prescription. Counterfeit medicines can be very dangerous. You need a prescription from a doctor to buy these medications. You can buy from a store-based pharmacy or a reputable online pharmacy with a prescription.
That last point is worth sitting with. There are sites selling what appears to be Viagra or Cialis without requiring a prescription. Some of these are counterfeit products that contain unknown substances, incorrect doses, or nothing at all. The risk isn’t worth it when legitimate, affordable, discreet options exist.
A Note on Psychological Factors
Not all ED has a physical cause. Psychological issues including relationship difficulties, sexual performance concerns, anxiety and depression are all linked to ED. Brief counselling and education to address these factors is recommended alongside medication where relevant, and couple counselling with a psychologist may help with more complex issues.
Performance anxiety in particular creates a cycle that’s hard to break on your own. The worry about whether it will happen causes it to happen, which increases the worry. Medication can sometimes help break that cycle by restoring confidence, but therapy addresses the root cause more directly.
If you suspect your ED has a psychological element, it’s worth mentioning to your doctor rather than just asking for a pill and hoping for the best.
Where to Find Reliable Information
The best starting point for Australians looking for accurate, no-nonsense information on ED and its treatments is healthdirect.gov.au, run by the Australian government. It covers medications, treatment options, when to see a doctor, and how to navigate the healthcare system. Healthy Male at healthymale.org.au is another excellent resource with clinical guidance written specifically for Australian men and the GPs who treat them.
ED is one of the most treatable conditions in men’s health. The medications work well, the process for getting them is more straightforward than it’s ever been, and there is genuinely no reason to keep putting it off. The first step is always the hardest, and it’s usually just a conversation.
Rainbow Wellness Hub was created from a simple observation. Conversations about identity, wellbeing, health, and confidence often exist in separate corners of the internet, even though they are deeply connected in real life.
