A new pill to treat HIV infection — combining two previously approved drugs plus two new ones — has been approved for adults living with the virus that causes AIDS, US regulators said Monday.

The single daily dose of Stribild provides a complete treatment regimen for HIV infection, the US Food and Drug Administration said in a statement.

“Through continued research and drug development, treatment for those infected with HIV has evolved from multi-pill regimens to single-pill regimens,” said Edward Cox, director of the Office of Antimicrobial Products in the FDA’s Center for Drug Evaluation and Research.

“New combination HIV drugs like Stribild help simplify treatment regimens.”