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Atazanavir and cobicistat and Titralac

Determining the interaction of Atazanavir and cobicistat and Titralac and the possibility of their joint administration.

Check result:

Atazanavir and cobicistat <> Titralac

Relevance: 16.08.2022 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:

Using calcium carbonate together with atazanavir may decrease the effects of atazanavir. Atazanavir should be administered 2 hours before or 1 hour after calcium carbonate. If your doctor does prescribe these medications together, you may need a dose adjustment or special test to safely use both medications. 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: Concurrent administration of antacids or other agents with acid-neutralizing effects may decrease the oral bioavailability of atazanavir and substantially reduce its concentrations in plasma. Atazanavir solubility decreases with increasing pH, thus reduction in gastric acidity may interfere with dissolution of the drug. Subtherapeutic antiretroviral drug levels may lead to reduced viral susceptibility and development of resistance.

MANAGEMENT: Atazanavir should be administered 2 hours before or 1 hour after antacids or other oral agents with acid-neutralizing effects.

References

"Product Information. Reyataz (atazanavir)." Bristol-Myers Squibb, Princeton, NJ.
Durant J, Clevenbergh P, Garraffo R, Halfon P, Icard S, DelGiudice P, Montagne N, Schapiro JM, Dellamonica P "Importance of protease inhibitor plasma levels in HIV-infected patients treated with genotypic-guided therapy: pharmacological data from the Viradapt Study." Aids 14 (2000): 1333-9
Ray JE, Marriott D, Bloch MT, McLachlan AJ "Therapeutic drug monitoring of atazanavir: surveillance of pharmacotherapy in the clinic." Br J Clin Pharmacol 60 (2005): 291-9

Atazanavir and cobicistat

Generic Name: atazanavir / cobicistat

Brand name: Evotaz

Synonyms: Atazanavir and Cobicistat

What is Atazanavir and cobicistat?

Titralac

Generic Name: calcium carbonate

Brand name: Alka-Mints, Alkets, Alkums, Amilac, Amitone, Cal Oys, Cal-Gest, Calcarb, Calci Mix, Calci-Chew, Calcitab, Caltrate, Caltro, Chooz, Dicarbosil, Equilet, Mylanta Child, Nephro Calci, OsCal 500, Oysco 500, Oyst Cal, Oyst Cal 500, Oyster Cal 500, Oyster Calcium, Oyster Shell, Oyster Shell Calcium 500, Rolaids Sodium Free, Super Calcium, Titralac, Tums, Tums 500, Tums E-X, Tums Ultra, Cal-Mint, Calci Mix, Os-Cal 500, Calcium Concentrate, Oyster, Oyster Cal, Calcium Oyster, Calcium Liquid Softgel, 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

Synonyms: n.a.

What is Titralac?

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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.

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