How long does Abacavir, Dolutegravir, and Lamivudine stay in your system?
Last updated September 6, 2026.
**Most of your last dose of abacavir, dolutegravir, and lamivudine clears from your blood within about 3 to 4 days.** This estimate uses about five half-lives, the time needed for blood levels to fall by roughly 97%. Abacavir clears fastest, while dolutegravir and lamivudine take longer. Active forms inside your cells can persist beyond blood clearance, and kidney or liver problems can change the timing. Keep taking your prescribed daily dose because remaining drug does not mean you can safely skip doses.
What to do
- **Keep a routine:** Take your prescribed dose at the same time each day.
- **Handle missed doses:** Take a missed dose when you remember unless it is almost time for the next one, and never double up.
- **Review your health:** Tell your clinician about kidney or liver problems that could affect treatment.
- **Plan treatment changes:** Talk with your clinician before stopping or restarting, especially if you also have hepatitis B.
- **Report possible allergy:** If you suspect an allergic reaction, stop taking the medicine and get medical help immediately.
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