Hepatitis B (HBV) Status
Dovato: Cannot be used by people who also have Hepatitis B, as it only contains one drug that active against HBV, which can lead to resistance.

Descovy: Contains two drugs that fight Hepatitis B, making it the standard choice for anyone with a "co-infection."

Weight Gain and Metabolic Health
This is where the two medications differ most significantly in recent 2024-2025 studies (like the PASO DOBLE trial).

Dovato: Studies consistently show that Dovato is associated with significantly less weight gain than regimens containing Descovy (specifically when Descovy is part of Biktarvy).

Descovy: TAF (the main ingredient in Descovy) has been linked to higher increases in body weight and "bad" (LDL) cholesterol. If weight management or heart health is your primary concern, Dovato is generally considered the "lighter" option on your metabolism.

Kidney and Bone Health
Dovato: Because it does not contain any form of Tenofovir, it has zero impact on bone density or kidney filtration. It is often the preferred choice for people who already have kidney issues or early signs of osteoporosis.

Descovy: It contains TAF (Tenofovir Alafenamide), a "next-generation" drug that is much safer for bones and kidneys than the older version (TDF/Truvada). However, it still carries a very small, measurable risk compared to Dovato, which lacks Tenofovir entirely.

Medication "Load" (2 vs. 3 Drugs)
Dovato: This is a two-drug regimen (Dolutegravir + Lamivudine). It is designed to be a "complete" treatment with fewer chemicals for your liver and kidneys to process daily.

Descovy: This is a two-drug backbone (Tenofovir Alafenamide + Emtricitabine). It is not a complete treatment on its own; it must be paired with a third drug (like Tivicay or Prezista). This means your body is processing three drugs total.

Choosing between Dovato and Descovy depends on your specific health goals, as they impact the body in different ways. In modern HIV care, the trend has moved toward "regimen optimization"—which means finding the fewest drugs necessary to keep you undetectable while causing the least long-term strain on your organs.

Here is a breakdown of how each medication affects your body.