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Abacavir, dolutegravir, and lamivudine and Calcium Carbonate Suspension

Determining the interaction of Abacavir, dolutegravir, and lamivudine and Calcium Carbonate Suspension and the possibility of their joint administration.

Check result:
Abacavir, dolutegravir, and lamivudine <> Calcium Carbonate Suspension
Relevance: 09.07.2023 Reviewer: Shkutko P.M., M.D., in

In the database of official manuals used in the service creation an interaction registered by statistical results of studies was found, which can either lead to negative consequences for the patient health or strengthen a mutual positive effect. A doctor should be consulted to address the issue of joint drug administration.

Consumer:

Dolutegravir and calcium carbonate should not be taken orally at the same time. Products that contain aluminum, calcium, iron, magnesium and/or other minerals may interfere with the absorption of dolutegravir and reduce its effectiveness in treating HIV infection. You should take dolutegravir at least two hours before or six hours after the calcium carbonate dose. Talk to your doctor if you have any questions or concerns, or if you have trouble separating the dosing times. Your doctor may be able to prescribe alternatives that do not interact. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Professional:

ADJUST DOSING INTERVAL: Coadministration with medications containing polyvalent cations such as aluminum, calcium, iron, or magnesium may decrease the oral bioavailability of dolutegravir. The mechanism of interaction has not been established. In 16 study subjects, administration of a single 50 mg dose of dolutegravir simultaneously with an antacid (Maalox) decreased dolutegravir peak plasma concentration (Cmax), systemic exposure (AUC) and trough plasma concentration (Cmin; 24 hours post-dose) by 72%, 74% and 74%, respectively, compared to administration without the antacid. When the antacid was administered 2 hours after dolutegravir, the Cmax, AUC and Cmin of dolutegravir decreased by just 18%, 26% and 30%, respectively. Administration of single-dose dolutegravir simultaneously with a multivitamin (One-A-Day) decreased the Cmax, AUC and Cmin of dolutegravir by 35%, 33% and 32%, respectively.

MANAGEMENT: Dolutegravir should be administered 2 hours before or 6 hours after medications containing polyvalent cations such as antacids, laxatives, or mineral supplements.

References
  • "Product Information. Tivicay (dolutegravir)." ViiV Healthcare, Research Triangle Park, NC.
Abacavir, dolutegravir, and lamivudine

Generic Name: abacavir / dolutegravir / lamivudine

Brand name: Triumeq

Synonyms: Abacavir, Dolutegravir, and Lamivudine

Calcium Carbonate Suspension

Generic Name: calcium carbonate

Brand name: Calci-Chew, Oysco 500, Calci Mix, Os-Cal 500, Oyst Cal 500, Oyster Shell Calcium 500, Nephro Calci, Amitone, Dicarbosil, Equilet, Tums, Chooz, Tums E-X, Alkets, Titralac, Oyster Cal 500, Calcitab, Oyster Shell, Oyster Calcium, Super Calcium, Calcium Concentrate, Caltro, Oyster, Oyster Cal, Cal Oys, Alkums, Cal-Gest, Tums 500, Tums Ultra, Alka-Mints, Calcarb, Caltrate, Rolaids Sodium Free, Amilac, Calcium Oyster, Oyst Cal, Calcium Liquid Softgel, Mylanta Child, Maalox Quick Dissolve, Maalox Quick Dissolve Maximum Strength, Ultra Mylanta Calci Tabs, Extra Strength Mylanta Calci Tabs, Os-Cal, Surpass, Surpass Extra Strength, Icar Prenatal Chewable Calcium, Tums Extra Strength, Maalox Quick Dissolve Extra Strength, Calcium Oyster Shell, Maalox Antacid Barrier, Rolaids Soft Chew, Pepto Children's, Maalox Regular Strength, Maalox Children's, Tums Kids, Tums QuikPak, Calci-Mix, Alcalak, Tums Smoothies, Tums Chewy Bites, Tums Chewy Delights, Tums Sugar-Free, Cal-Mint, Calci Mix, OsCal 500

Synonyms: Calcium carbonate, Calcium Carbonate

In the course of checking the drug compatibility and interactions, data from the following reference sources was used: Drugs.com, Rxlist.com, Webmd.com, Medscape.com.