HIV (Human Immunodeficiency Virus) is a virus that attacks the immune system, specifically targeting CD4 cells that help fight infection. When left untreated, HIV can progress to AIDS (Acquired Immunodeficiency Syndrome). However, modern antiretroviral therapy (ART) has transformed HIV from a life-threatening condition into a manageable chronic illness. People living with HIV who take their medications consistently can achieve undetectable viral loads, meaning the virus becomes undetectable in blood tests and cannot be transmitted sexually to others – a concept known as "Undetectable equals Untransmittable" (U=U).
Today, Australians living with HIV have access to highly effective medications that allow them to live long, healthy lives with normal life expectancy. Treatment not only improves individual health outcomes but also prevents transmission to sexual partners. Early diagnosis and prompt treatment initiation are crucial for achieving the best health outcomes and reducing the risk of complications.
Several classes of HIV medications are available in Australia, each working in different ways to prevent the virus from replicating. These include nucleoside reverse transcriptase inhibitors (NRTIs), non-nucleoside reverse transcriptase inhibitors (NNRTIs), protease inhibitors (PIs), integrase strand transfer inhibitors (INSTIs), and entry inhibitors. Most people take a combination of these medications, typically consisting of two NRTIs combined with one medication from another class.
Popular antiretroviral combinations prescribed in Australia include Bictegravir/Tenofovir alafenamide/Emtricitabine, which is available under brand names like Biktarvy. Dolutegravir-based regimens, available as Tivicay, are frequently recommended due to their efficacy and tolerability. Efavirenz-containing regimens remain accessible, though newer options are often preferred due to fewer side effects. Protease inhibitor-based treatments like Ritonavir-boosted Darunavir are also available for those with specific resistance patterns or treatment history.
Additionally, long-acting injectable options have become available in Australia, offering patients alternatives to daily pills. These injections, administered monthly or every two months, can improve adherence and quality of life for eligible patients.
Current Australian guidelines recommend that all people diagnosed with HIV should start antiretroviral therapy regardless of CD4 count. Early treatment initiation provides better health outcomes, reduces the risk of developing AIDS-related illnesses, and significantly decreases the likelihood of transmitting the virus to sexual partners. Most HIV specialists in Australia recommend starting treatment as soon as possible after diagnosis, ideally within two weeks.
The selection of an HIV medication regimen depends on several factors including the patient's CD4 count, viral load, other medical conditions, potential drug interactions, lifestyle factors, and tolerability. Your doctor will conduct blood tests including CD4 count and viral load testing before recommending a specific treatment combination. Adherence to the chosen regimen is critical for success, so patients should discuss their preferences and any concerns with their healthcare provider to ensure they receive a regimen they can take consistently.
Modern HIV medications are generally well-tolerated, but some people may experience side effects ranging from mild to more significant. Common side effects include:
Most side effects improve within the first few weeks of treatment. If side effects persist or become bothersome, your doctor can adjust your medication regimen to find options that work better for you. It is important never to stop taking your medications without consulting your healthcare provider.
People taking HIV treatment require regular monitoring to ensure the medication is working effectively and to check for any complications. Initial monitoring typically involves blood tests every three months, which includes viral load testing and CD4 count measurement. Once your viral load is undetectable and remains so for at least six months, monitoring frequency can often be reduced to every six to twelve months, depending on your individual circumstances and doctor's recommendations.
CD4 count measures the number of CD4 cells in your blood and indicates how well your immune system is functioning. A normal CD4 count is between 500 and 1,500 cells. Viral load measures the amount of HIV in your blood. The goal of HIV treatment is to reduce your viral load to undetectable levels (usually below 50 copies per millilitre) and allow your CD4 count to recover and remain above 200 cells.
People living with HIV should also receive regular screening for other conditions including sexually transmitted infections, tuberculosis, and certain cancers. Vaccination against preventable diseases such as hepatitis A and B, influenza, and pneumococcal disease is recommended. Mental health support and regular check-ups for cardiovascular and bone health are also important components of comprehensive HIV care.
Whilst treatment is highly effective, prevention remains important. Condoms remain an accessible and effective method for preventing HIV and other sexually transmitted infections. Pre-exposure prophylaxis (PrEP) is available in Australia for people at high risk of acquiring HIV and involves taking antiretroviral medication before potential exposure. Post-exposure prophylaxis (PEP) is an emergency medication course available for up to 72 hours after potential exposure to HIV.
People diagnosed with HIV in Australia are not legally required to disclose their status to sexual partners if they are maintaining an undetectable viral load, as transmission is not possible. However, many people choose to disclose for personal reasons. Healthcare providers can assist with partner notification services if needed, allowing partners to access testing and prevention options.
Australia has a comprehensive healthcare system supporting people living with HIV. Sexual health clinics and infectious disease specialists across major cities provide HIV testing, treatment, and ongoing care. Medicare covers HIV medications and related medical consultations. Additionally, some states offer additional support services including case management and adherence support programs.
Various Australian organisations provide support, education, and advocacy for people living with HIV. These services offer counselling, peer support groups, and educational resources. Community pharmacies can also provide medication counselling and support. Online resources provide information about living with HIV, managing treatment, and sexual health. Reaching out to these services can help individuals feel less isolated and provide practical assistance in managing their condition and treatment journey.
