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Benemid and Valacyclovir Hydrochloride

Determining the interaction of Benemid and Valacyclovir Hydrochloride and the possibility of their joint administration.

Check result:
Benemid <> Valacyclovir Hydrochloride
Relevance: 19.08.2022 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:

Consumer information for this minor interaction is not currently available. Some minor drug interactions may not be clinically relevant in all patients. Minor drug interactions do not usually cause harm or require a change in therapy. However, your healthcare provider can determine if adjustments to your medications are needed.

Professional:

Probenecid may increase the serum concentration of acyclovir through competitive inhibition of renal tubular secretion. Initial dosage adjustments are not usually necessary, but patients should be monitored for acyclovir-related toxicities. Also, probenecid reduces the rate at which valacyclovir is converted to acyclovir. The extent of conversion, however, is unaffected. This interaction is not considered to be clinically significant.

References
  • Laskin OL, de Miranda P, King DH, et al "Effects of probenecid on the pharmacokinetics and elimination of acyclovir in humans." Antimicrob Agents Chemother 21 (1982): 804-7
  • Rolan PE, Maillot F, On NT, Posner J "The effects of cimetidine and probenecid on the conversion of a valine ester of acyclovir, 256U, to acyclovir and acyclovir renal clearance in healthy volunteers." Br J Clin Pharmacol 33 (1993): 533
  • "Product Information. Valtrex (valacyclovir)." Glaxo Wellcome, Research Triangle Park, NC.
Benemid

Generic Name: probenecid

Brand name: Benemid

Synonyms: n.a.

Valacyclovir Hydrochloride

Generic Name: valacyclovir

Brand name: Valtrex

Synonyms: Valacyclovir, ValACYclovir

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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Disease interaction