Anti HIV

 

 Top quality and affordable anti-HIV medicines

Anti HIV

HIV (human immunodeficiency virus) is a virus that attacks cells that help the body fight infection, making a person more vulnerable to other infections and diseases. It is spread by contact with certain bodily fluids of a person with HIV, most commonly during unprotected sex (sex without a condom or HIV medicine to prevent or treat HIV), or through sharing injection drug equipment.

AIDS is the late stage of HIV infection that occurs when the body’s immune system is badly damaged because of the virus.

A person with HIV is considered to have progressed to AIDS when:

  • The number of their CD4 cells falls below 200 cells per cubic millimeter of blood (200 cells/mm3). (In someone with a healthy immune system, CD4 counts are between 500 and 1,600 cells/mm3.) OR
  • They develop one or more opportunistic infections regardless of their CD4 count.
Treatment

Treatment as prevention (TasP) refers to taking HIV medication to prevent the sexual transmission of HIV. It is one of the highly effective options for preventing HIV transmission. People living with HIV who take HIV medication daily as prescribed and get and keep an undetectable viral load have effectively no risk of sexually transmitting HIV to their HIV-negative partners.

If you have HIV, it is important to start treatment with HIV medication (called antiretroviral therapy or ART) as soon as possible after your diagnosis.

If taken every day, exactly as prescribed, HIV medication can reduce the amount of HIV in your blood (also called the viral load) to a very low level. This is called viral suppression. It is called viral suppression because HIV medication prevents the virus from growing in your body and keeps the virus very low or “suppressed.” Viral suppression helps keep you healthy and prevents illness.

Antiretroviral Drugs

The treatment of HIV involves antiretroviral medications that fight the HIV infection and slows down the spread of the virus in the body. People living with HIV generally take a combination of medications called highly active antiretroviral therapy (HAART) or combination antiretroviral therapy (cART).

There are a number of subgroups of antiretrovirals, such as:

Protease inhibitors

Protease is an enzyme that HIV needs to replicate. These medications bind to the enzyme and inhibit its action, preventing HIV from making copies of itself.

These include:

  • atazanavir/cobicistat (Evotaz)
  • lopinavir/ritonavir (Kaletra)
  • darunavir/cobicistat (Prezcobix)
Integrase inhibitors

HIV needs integrase, another enzyme, to infect T cells. This drug blocks integrase. These are often the first line of treatment due to their effectiveness and limited side effects for many people.

Integrase inhibitors include:

  • elvitegravir (Vitekta)
  • dolutegravir (Tivicay)
  • raltegravir (Isentress)
Nucleoside/nucleotide reverse transcriptase inhibitors (NRTIs)

These drugs, also referred to as “nukes,” interfere with HIV as it tries to replicate.

This class of drugs includes:

  • abacavir (Ziagen)
  • lamivudine/zidovudine (Combivir)
  • emtricitabine (Emtriva)
  • tenofovir disproxil (Viread)
Non-nucleoside reverse transcriptase inhibitors (NNRTIs)

NNRTIs work in a similar way to NRTIs, making it more difficult for HIV to replicate.

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