ISENTRESS is a prescription medication used in the treatment of Human Immunodeficiency Virus (HIV) infection. It belongs to a class of drugs known as integrase inhibitors, which work by blocking the integrase enzyme. This enzyme is crucial for the HIV virus as it allows the viral DNA to integrate into the DNA of the host cell, a necessary step for the virus to replicate. By inhibiting this enzyme, ISENTRESS effectively prevents the virus from multiplying, thereby reducing the viral load in the body. It is often used in combination with other antiretroviral medications as part of an antiretroviral therapy (ART) regimen to achieve optimal control of HIV infection. ISENTRESS is suitable for use in adults and children, with specific dosing based on age and weight.