How many hiv drugs are there

Post-attachment inhibitors bind to the CD4 receptor on T-cells. They prevent the HIV gp protein from changing its shape to engage with co-receptors after it engages with the CD4 receptor. One post-attachment inhibitor is available. Adding a small dose of a booster drug to an antiretroviral makes the liver break down the primary drug more slowly, which means that it stays in the body for longer times or at higher levels.

Without the boosting agent, the prescribed dose of the primary drug would be ineffective. There are some fixed-dose pills that combine two or three antiretroviral drugs from more than one class into a single pill that is taken once a day. Find out more about these on our page Single-tablet regimens. HIV treatment. Primary tabs View active tab Preview. They work by blocking a stage of the virus's life cycle and, by doing so, prevent the virus from replicating.

The drugs are organized into six different classes based largely on the stage of the life cycle they inhibit. As of , the Food and Drug Administration has granted approval to 26 individual drug agents and 22 fixed-dosed combination FDC drugs comprised of two or more antiretrovirals. This includes the first antiretroviral drug regimen, called Cabenuva, that requires a once-monthly injection rather than having to take an oral dose every day.

Antiretroviral therapy is quickly changing, with newer drug agents offering fewer side effects, greater durability, and a decreased risk of drug resistance. In the past, antiretroviral therapy was described as a three-drug "cocktail. While several new antiretroviral drugs have been added to the treatment arsenal since , older ones like Crixivan indinavir , Invirase saquinavir , Rescriptor delavirdine , Videx didanosine , Viracept nelfinavir , and Zerit stavudine have been discontinued and are no longer in use.

Without the means to enter a cell, HIV cannot replicate. They do so by inhibiting a viral enzyme known as integrase. In order for HIV to replicate, it uses an enzyme called reverse transcriptase to translate its viral RNA into double-stranded DNA , which is then integrated into the nucleus of the host cell to "hijack" its genetic machinery.

By doing so, HIV can begin to churn out multiple copies of itself. Nucleoside reverse transcriptase inhibitors NRTIs block the action of reverse transcriptase and so prevent the replication of the virus. Non-nucleoside reverse transcriptase inhibitors NNRTIs also block reverse transcriptase but in a different way. Protease inhibitors PIs work by blocking an enzyme known as protease. Combination drugs combine multiple medications into one drug form.

These are known as multiclass combination drugs or single-tablet regimens STRs. Symfi and Symfi Lo are made up of the same generic medications.

However, Symfi Lo contains a smaller dose of efavirenz. Many HIV drugs can cause temporary side effects when first used. In general, these effects can include:. These drugs may cause side effects for the first several weeks. If the side effects get worse or last longer than a few weeks, consider talking to a healthcare provider. They may suggest ways to ease the side effects, or they may prescribe a different drug altogether.

Less often, HIV drugs can cause serious or long-term side effects. These effects depend on the type of HIV drugs used. A healthcare provider can offer more information. Drugs can also improve HIV symptoms and make living with the condition more comfortable.

This medication list is a brief overview of the types of drugs that are available to treat HIV. Talk to a healthcare provider about all of these options. They can help you determine your best treatment plan. Read this article in Spanish.

While not a highly common symptom, HIV can also affect your nails. Find out what changes to look for and when treatment is necessary. Telling someone about your HIV status can be daunting. Massey told his partner, Johnny, about his HIV status when they first met…. August 13, October 12, Isentress HD. May 26, Attachment Inhibitors. Post-Attachment Inhibitors. Post-attachment inhibitors block CD4 receptors on the surface of certain immune cells that HIV needs to enter the cells.

March 6, Pharmacokinetic Enhancers. September 24, Combination HIV Medicines. August 2, August 22, November 14,