Several different types of medicines exist to treat HIV infection. These medicines attack various aspects of the process by which the virus replicates itself. Because HIV quickly mutates to become resistant to any single drug, patients must take a combination of medicines to achieve maximum suppression of HIV.
The combination of medicines is known as antiretroviral therapy; some people use the term ARV (antiretroviral) treatment. Antiretroviral medications or drugs are used to treat children and adults infected with HIV, to prevent transmission of HIV from mother-to-child, and as a preventive therapy after exposure to HIV infection [also called post-exposure prophylaxis]. Starting antiretroviral therapy early in the course of HIV infection in infants and children has also led to significant positive changes in the survival of children living with HIV.
Antiretroviral therapy changes the natural course of HIV infection, significantly delaying the development of symptoms. To achieve this, it is important to diagnose HIV infection before AIDS symptoms develop, in order to initiate therapy at the most effective point before the immune system is damaged. However, patients who start on therapy even after being diagnosed with AIDS often receive major and long-lasting health benefits.
Although antiretroviral therapy is effective in slowing the progression of HIV-related disease and can prolong one's life up to a normal life expectancy, it is not a cure, and a person may still develop AIDS one day. Antiretroviral therapy should not be disrupted and needs to be taken for life. Any exception to this should be carried out in consultation with a specialised medical doctor based on the individual case. In addition to treatments for HIV infection itself, therapies exist to prevent and/or treat many HIV-related opportunistic infections.
As staff of the UN, we (and those in our families who are also covered by UN-related insurance) are entitled to appropriate medical care, including HIV-related care. If you are living with HIV, please note that it is helpful to become aware of the variety of existing treatments before you get treatment. Each treatment needs to be adapted to your personal health situation. It is helpful for you to become an educated partner with your medical doctor when discussing what kind of antiretroviral therapy would be best for you.
No, but you should immediately find a physician who is experienced in HIV for follow-up tests and consultation. Your physician will monitor your health status regularly and will decide if and when you need to start taking antiretroviral/other medication, which will depend on various factors, including blood results. He or she will evaluate your past medical history, check your clinical status, physically examine you and perform additional tests to assess the stage of your HIV infection.
One of the things your doctor will look at is your CD4 cell count. The immune system is made up of different white blood cells that protect us from diseases. When the immune system is functioning normally, the CD4 cells (also known as T-helper cells or T-cells) protect the body by recognizing and destroying viruses and bacteria. It is also the cell that HIV attacks and destroys. A high viral load means that HIV has crippled a large number of CD4 cells, making the immune system weaker and more susceptible to diseases.
Ask for a referral or use the UN Cares Services Directory on HIV to find a physician in your area.
Because HIV is constantly mutating, it quickly becomes resistant to any single medicine. When resistance develops, the medicines are not as effective and the viral load level in the blood begins to rebound. To prevent or slow down the development of such resistance, your doctor will prescribe three different antiretroviral medicines (combination therapy), although many combination therapies are now available in a single pill. By attacking HIV in different ways, combination therapy achieves maximum impact and reduces the likelihood that drug resistance will develop.
Combination HIV therapy is not simple, however with single pill dosing, incorporating as many as three medicines in a single pill, it is getting easier. Those of us who are HIV-positive and on therapy might need to take multiple drugs especially if our HIV infection is advanced and we also need treatment for other opportunistic infections. Taking medication as prescribed is often referred to as 'treatment adherence'. Because treatment adherence is so critically important in the case of HIV, extra care must be taken to make sure that HIV medicines are taken exactly as prescribed. If you miss doses, fail to take them on time, or otherwise vary your treatment regimen, the medicines will not be as effective and resistance will develop more quickly. Depending on your regimen, you may have certain eating restrictions (such as the need to take medicines with food) and may have to refrigerate one or more of your medicines.
For those of us who are living with HIV, we are most prone to infections once the virus has seriously damaged our immune system. For most individuals, combination HIV therapy significantly strengthens the immune system and reduces susceptibility to opportunistic infections. If you are living with HIV, regularly see a doctor qualified to treat HIV-related illness, so that your immune system can be monitored. Routine monitoring of your immune system will enable your doctor to prescribe treatments to prevent some of the opportunistic infections that can affect people living with HIV.
The susceptibility of people with HIV to opportunistic infections underscores the importance of knowing one's HIV status. Many people with HIV who delay testing only learn that they are positive when they experience a serious, sometimes life-threatening, illness. By knowing your HIV status, you can take better care of your health and ensure that you are monitored periodically. If you are living with HIV, your doctor can prescribe medication that can prevent opportunistic infections from developing.
Although antiretroviral therapy is effective in slowing the progression of HIV-related disease and can prolong one’s life up to a normal life expectancy, it is not a cure, and a person may still develop AIDS one day.
Preventing, diagnosing and treating tuberculosis Tuberculosis (TB) is a common and often deadly infectious disease that can affect us all. One third of the world's population is infected with the tuberculosis germ. Not everyone who is infected will develop tuberculosis (only about one in ten in their lifetime) but around 9 million people worldwide who have been infected develop tuberculosis each year.
People living with HIV are much more likely to develop tuberculosis once they are infected (about one in ten per year), even when taking appropriate treatment for HIV. In fact, tuberculosis is the most common cause of illness and death among people living with HIV in many parts of the world, despite being preventable and curable. In many countries, tuberculosis is often the first sign that someone is infected with HIV, as it occurs early in the course of HIV infection.
We must all be aware of the symptoms of tuberculosis and take prompt action if we suspect tuberculosis in ourselves or our colleagues, friends and family. Early diagnosis and treatment of tuberculosis improves the outcome and reduces the risk of spreading it to others. The most common symptoms of tuberculosis are persistent cough for more than two to three weeks, unexplained weight loss, fever, and night sweats. If you think you might have tuberculosis, visit your nearest clinic immediately.
All of us who are living with HIV should be screened to see if we have been infected with tuberculosis, as this can be treated to prevent tuberculosis disease developing (isoniazid preventive therapy). People living with HIV should also be screened regularly for tuberculosis disease each time they go to the clinic. Remember, tuberculosis is preventable and curable.
- Video: What Prevents Patients from Taking ARVs as Prescribed?
- Video: Challenges in Antiretroviral Therapy
- Video: Better Adherence for a Better Life
(Note: Links will open in a new browser window)
The HIV Life Cycle
A comprehensive description of the HIV life cycle.
Stages of HIV infection
– What to expect over time.
AIDS Treatment News
This site includes hundreds of links about treatment issues, and is divided up into usable categories, like, ‘Medical Journals Online,’ ‘Ask an Expert,’ ‘Women, Children and Families,’ and ‘Alternative Therapies’.
Community AIDS Treatment Information Exchange
CATIE, a Canadian non-profit organization, provides AIDS treatment information (symptoms, diagnostic, prevention, access to medication, research...) in an effort to encourage people living with HIV/AIDS to get actively involved in making decisions and developing strategies to optimize their health care. A comprehensive Web site, with two electronic mailing lists, numerous current print publications and a bilingual, and a toll-free phone service.
A very useful site for HIV positive individuals by the organization HIV-DrugInteractions.org
Database of Anti-retroviral Drug Interactions
This site was developed by HIV Insight, a site developed by the University of California at San Francisco Medical School.