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EQ Cold Plus and Irenka

Determining the interaction of EQ Cold Plus and Irenka and the possibility of their joint administration.

Check result:
EQ Cold Plus <> Irenka
Relevance: 07.03.2023 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:

DULoxetine may increase the blood levels and effects of chlorpheniramine. You may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications. Contact your doctor if your condition changes or you experience increased side effects. 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:

MONITOR: Duloxetine is a moderate inhibitor of CYP450 2D6 and may increase the plasma concentrations of drugs that are substrates of the isoenzyme. According to the product labeling, when duloxetine (60 mg twice a day) was administered in conjunction with a single 50 mg dose of desipramine, a CYP450 2D6 substrate, the systemic exposure (AUC) of desipramine increased 3-fold. Conversely, many CYP450 2D6 substrates can also be competitive or noncompetitive inhibitors of the isoenzyme and may increase the plasma concentrations of duloxetine, which is partially metabolized by CYP450 2D6.

MANAGEMENT: Caution is advised if duloxetine must be used concomitantly with medications that undergo metabolism by CYP450 2D6, particularly those with a narrow therapeutic range such as tricyclic antidepressants, phenothiazines, beta blockers, and class IC antiarrhythmic agents (e.g., propafenone, flecainide). A lower initial dosage, as well as clinical and laboratory monitoring, may be appropriate for some drugs.

References
  • Skinner MH, Kuan HY, Pan A, et al. "Duloxetine is both an inhibitor and a substrate of cytochrome P4502D6 in healthy volunteers." Clin Pharmacol Ther 73 (2003): 170-7
  • "Product Information. Cymbalta (duloxetine)." Lilly, Eli and Company, Indianapolis, IN.
EQ Cold Plus

Generic Name: acetaminophen / chlorpheniramine / pseudoephedrine

Brand name: Alka-Seltzer Plus Cold Liquigel, Comtrex Allergy Sinus, Comtrex Allergy Sinus Maximum Strength, Kolephrin, Sinutab Ex-Strength, Theraflu Maximum Strength, Singlet, Simplet, Tricom, Theraflu Flu and Cold Medicine Powder, Codimal, Tylenol Gelcap Allergy Sinus, Theraflu Sore Throat Maximum Strength, Allerest Sinus, Tylenol Cold-Child, Tylenol Allergy Sinus Caplet, Tylenol Allergy Sinus Geltab, Comtrex Allergy Sinus Night and Day, Allerest Headache Strength, Sinarest Extra Strength, Sinarest, Children's Tylenol Cold Multi-Symptom, Tylenol Allergy Sinus Gelcap, Children's Tylenol Cold, Triaminicin, Sinutab Maximum Strength Caplets, Sinutab Maximum Strength Non-Drowsy, Actifed Cold & Sinus, Theraflu Cold & Sore Throat, Theraflu Flu & Sore Throat, Allergy Sinus Maximum Strength, Cold Medicine Plus, EQ Cold Plus, Complete Sinus Relief, Sinadrin PE Complete Sinus Relief

Synonyms: Acetaminophen, chlorpheniramine, and pseudoephedrine

Irenka

Generic Name: duloxetine

Brand name: Cymbalta, Irenka, Drizalma Sprinkle

Synonyms: n.a.

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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