Last update April 1, 2023



Safe substance and/or breastfeeding is the best option.

Abacavir is a nucleoside reverse transcriptase inhibitor (NRTI) with antiretroviral activity against HIV. Indicated for children older than 3 mo. Oral administration in one or two daily doses.

It is excreted in breast milk in clinically insignificant amounts (Aebi 2022, Shapiro 2013) and no problems have been observed in infants whose mothers have taken it. (Kobbe 2016)

Plasma levels in these infants were very low. (Aebi 2022, Shapiro 2013)

No cases of hyperprolactinemia and/or galactorrhea attributed to Abacavir have been described in women, although there have been cases in men. (Hutchinson 2000).

See below the information of this related product:


We do not have alternatives for J05AF06 since it is relatively safe.

Suggestions made at e-lactancia are done by APILAM team of health professionals, and are based on updated scientific publications. It is not intended to replace the relationship you have with your doctor but to compound it. The pharmaceutical industry contraindicates breastfeeding, mistakenly and without scientific reasons, in most of the drug data sheets.

Jose Maria Paricio, Founder & President of APILAM/e-Lactancia

Your contribution is essential for this service to continue to exist. We need the generosity of people like you who believe in the benefits of breastfeeding.

Thank you for helping to protect and promote breastfeeding.

José María Paricio, founder of e-lactancia.

Other names

J05AF06 is Abacavir (ABC) in ATC Code/s.

Is written in other languages:

J05AF06 is also known as


J05AF06 belongs to this group or family:


Main tradenames from several countries containing J05AF06 in its composition:


Variable Value Unit
Oral Bioavail. 83 %
Molecular weight 296 daltons
Protein Binding 49 %
VD 0.86 ± 0.15 l/Kg
pKa 15.4 -
Tmax 2 hours
1.5 ± 0.6 hours
M/P ratio 1.0 (0.8 - 1.7) -
Theoretical Dose 0.01 (0.01–0.02) mg/Kg/d
Relative Dose 0.34 (0.17 - 0.46) %
Ped.Relat.Dose 0.09 %


  1. Aebi-Popp K, Kahlert CR, Crisinel PA, Decosterd L, Saldanha SA, Hoesli I, Martinez De Tejada B, Duppenthaler A, Rauch A, Marzolini C; Swiss Mother and Child HIV Cohort Study (SHCS).. Transfer of antiretroviral drugs into breastmilk: a prospective study from the Swiss Mother and Child HIV Cohort Study. J Antimicrob Chemother. 2022 Nov 28;77(12):3436-3442. Consulted on Dec. 16, 2022 Abstract Full text (link to original source)
  2. WHO - World Health Organization Consolidated Guidelines on the Use of Antiretroviral Drugs for Treating and Preventing HIV Infection: Recommendations for a Public Health Approach. Guideline. 2016 Abstract Full text (link to original source) Full text (in our servers)
  3. Kobbe R, Schalkwijk S, Dunay G, Eberhard JM, Schulze-Sturm U, Hollwitz B, Degen O, Teulen M, Colbers A, Burger D. Dolutegravir in breast milk and maternal and infant plasma during breastfeeding. AIDS. 2016 Nov 13;30(17):2731-2733. No abstract available. Abstract Full text (link to original source)
  4. Shapiro RL, Rossi S, Ogwu A, Moss M, Leidner J, Moffat C, Lockman S, Moyo S, Makhema J, Essex M, Capparelli E. Therapeutic levels of lopinavir in late pregnancy and abacavir passage into breast milk in the Mma Bana Study, Botswana. Antivir Ther. 2013;18(4):585-90. Abstract Full text (link to original source)
  5. Ribera E, Tuset M, Martín M, del Cacho E. Características de los fármacos antirretrovirales. [Characteristics of antiretroviral drugs]. Enferm Infecc Microbiol Clin. 2011 May;29(5):362-91. Abstract
  6. Shapiro RL, Hughes MD, Ogwu A, Kitch D, Lockman S, Moffat C, Makhema J, Moyo S, Thior I, McIntosh K, van Widenfelt E, Leidner J, Powis K, Asmelash A, Tumbare E, Zwerski S, Sharma U, Handelsman E, Mburu K, Jayeoba O, Moko E, Souda S, et al. Antiretroviral regimens in pregnancy and breast-feeding in Botswana. N Engl J Med. 2010 Abstract Full text (link to original source)
  7. Hutchinson J, Murphy M, Harries R, Skinner CJ. Galactorrhoea and hyperprolactinaemia associated with protease-inhibitors. Lancet. 2000 Sep 16;356(9234):1003-4. Abstract

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