The short answer
Charcoal products need review before use with dolutegravir. Activated charcoal can reduce absorption of some medicines, but this targeted search did not establish the size of an interaction with dolutegravir. An unspecified charcoal powder should not automatically be treated as the medical activated preparation.
What this answer covers
The selected Charcoal entry does not establish activation, formulation or dose. Evidence about medical activated charcoal is considered indirect for the unspecified product and for dolutegravir specifically.
- Supplement or preparation
- charcoal
- Medication ingredient
- dolutegravir
Why might absorption be affected?
Medical activated charcoal has a large adsorbing surface and is used selectively in poisoning care. A toxicology position paper describes reduced absorption of various drugs in volunteer studies. It predates dolutegravir approval and cannot provide an exact result for this antiretroviral medicine.
Is there any practical interaction guidance?
The University of Cape Town medicines-information table warns about possible reduced antiretroviral absorption and suggests avoiding doses within two hours of activated charcoal where possible. This is a broad precaution. It does not demonstrate that two hours fully prevents a dolutegravir interaction.
Are detox capsules equivalent to medical charcoal?
No equivalence is established by the word charcoal alone. Activation, amount and other ingredients matter. Studies of large medical doses cannot be converted into a measured effect for a wellness capsule, and lack of an exact study should not be read as reassurance that concurrent use is safe.
What should I do about my HIV medicine?
Keep prescribed treatment consistent and ask the HIV pharmacist about the proposed charcoal product before adding it. Do not use a guessed spacing interval to replace that assessment or take an extra HIV dose to compensate. Suspected poisoning needs urgent professional advice rather than self-treatment with a supplement.
Evidence and practical considerations
Absorption & effectiveness
Charcoal products need review before use with dolutegravir. Activated charcoal can reduce absorption of some medicines, but this targeted search did not establish the size of an interaction with dolutegravir. An unspecified charcoal powder should not automatically be treated as the medical activated preparation.
- Exact scope
- The selected Charcoal entry does not establish activation, formulation or dose. Evidence about medical activated charcoal is considered indirect for the unspecified product and for dolutegravir specifically. with Dolutegravir, exact RxCUI 1433868, IN. TIVICAY contains dolutegravir sodium expressed as dolutegravir active-moiety strength in its label. This provides the explicit salt-to-IN bridge. Oral tablets are the primary scope; no automatic extrapolation to another integrase inhibitor or a different combination regimen. TIVICAY PD is not interchangeable milligram for milligram.
- Medication form and route
- oral
What remains uncertain
- No exact dolutegravir-charcoal pharmacokinetic trial was located. Search results about charcoal used in chemical manufacture were excluded as unrelated. The source node lacks sufficient product identity for direct clinical extrapolation.
Factors that may matter: exact preparation and dose; food and administration order; complete antiretroviral regimen.
Read the supporting source summaries
Source 1: regulatory prescribing information
dailymed.nlm.nih.gov · Source check Sep 10, 2026
Population: People prescribed oral dolutegravir, including tablet and pediatric suspension formulations with separate dosing instructions.
Specifies dolutegravir two hours before or six hours after named mineral products; calcium/iron supplements have a simultaneous-with-food exception for TIVICAY. St. John’s wort co-use is to be avoided because a dosing recommendation cannot be established.
How this applies: Restricted to the preparation and conditions described in this article.
The table includes both measured and predicted interactions. It does not quantify every mineral salt, product or botanical extract. Formulations and combination tablets require their own instructions.
Source 2: clinical medicines-information guidance
sahivsoc.org · Source check Sep 10, 2026
Population: People receiving antiretroviral medicines.
Warns that charcoal may decrease antiretroviral absorption and advises, where possible, avoiding antiretroviral dosing within two hours of charcoal.
How this applies: Restricted to the preparation and conditions described in this article.
Class-level precaution, not a dolutegravir-specific trial or proof that a two-hour interval eliminates the effect. Does not identify the generic Charcoal node as an activated medical preparation.
Source 3: clinical toxicology society position paper
pubmed.ncbi.nlm.nih.gov · Source check Sep 10, 2026
Population: Poisoning care and volunteer studies of drug absorption; not a dolutegravir cohort.
Charcoal can reduce absorption of adsorbable drugs; timing affects the result and the paper does not establish improved clinical outcomes from routine use.
How this applies: Restricted to the preparation and conditions described in this article.
Predates dolutegravir approval and does not test this medication. Medical charcoal, ordinary charcoal powder and low-dose wellness capsules are not interchangeable exposures.
Research assessment: · Open full citations ↗
Review and change history
- Publication status
- Published research summary
- Clinical review
- Not yet recorded
| Date | Update |
|---|---|
| Article prepared | |
| Current prescribing instructions and original research checked. Article written with product-specific timing and explicit limits of the evidence. | |
| Research summary published |
Article revision: 76ab80ecb12c39d4
This guide brings together the evidence records used by our interaction checker. Each finding retains its own preparation limits, research date, and source summaries.
Full citations require verification. Reading this answer and the source summaries does not.
Taking other supplements or medications?
Use the checker to explore your other combinations. Ask a pharmacist to review the exact products, amounts and medical conditions in your complete list.
Open the interaction checkerInformation, not medical advice. Do not change prescribed treatment based on this guide.