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Short answer Abacavir and dependence: what to know Common questions Related questions SourcesNo. Abacavir is not addictive, does not cause a high or cravings, and is not a controlled substance.
Abacavir is an HIV medicine that blocks the virus from copying itself, and it has no effect on the brain's reward pathways. Stopping it does not cause drug withdrawal, but it does let HIV multiply again and can lead to resistance that takes future treatment options away. The habit that matters most is taking every dose on schedule, so use a daily alarm, a pill box, or a pharmacy refill reminder. Abacavir does carry a risk of a hypersensitivity reaction, which is unrelated to addiction and is the reason you get an HLA-B*5701 blood test before your first dose. Talk with your clinician before changing or pausing any HIV medicine.
Abacavir and dependence: what to know
Common questions
Is Abacavir addictive?
No. Abacavir is not addictive. It is a nucleoside reverse transcriptase inhibitor used to treat HIV, and it does not act on the brain's reward pathways, produce euphoria, or create physical dependence. It is not a controlled substance. Stopping abacavir does not cause drug withdrawal, but missing doses allows HIV to multiply and can cause drug resistance, so take it at the same time every day. The one serious risk to know is a hypersensitivity reaction, which is why you are tested for the HLA-B*5701 gene before starting. If you ever had that reaction to abacavir, never take it again and contact your clinician.