Abacavir: Antiretroviral, reverse transcriptase inhibitor.Abacavir, Zidovudine, and Lamivudine - AidsMeds.com: Consumer information on Trizivir with links to forums, general AIDS topics, and other resources for AIDS patients.DrugDigest: Abacavir ( Ziagen ): Information on dosage, usage, side effects, interactions, and drug comparisons including generics when available.MedlinePlus: Abacavir: Features information about dosage, usage, warnings, and side effects.MedlinePlus: Abacavir and Lamivudine (Systemic): Features information about dosage, usage, warnings, and side effects.Ziagen: Product information for US residents in PDF format. [Acrobat Reader required]