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Coumadin Injection and Demulen 1/50

Determining the interaction of Coumadin Injection and Demulen 1/50 and the possibility of their joint administration.

Check result:

Coumadin Injection <> Demulen 1/50

Relevance: 09.11.2022 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:

Talk to your doctor before using warfarin and ethinyl estradiol. This combination may reduce the effects of warfarin. Call your doctor promptly if you have any signs of blood clots such as chest pain, shortness of breath, sudden loss of vision, or pain, redness or swelling in an extremity. It is important that you tell your healthcare provider about all other medications that you are using including vitamins and herbs. Do not stop using your medications without talking to your doctor first.

Professional:

GENERALLY AVOID: Concomitant therapy with estrogen-containing drugs may diminish the therapeutic effects of oral anticoagulants. Estrogens can increase the plasma levels of certain clotting factors such as fibrinogen, prothrombin, and factors VII and VIII in a dose-dependent manner, resulting in increased risk of thromboembolism, stroke, and/or myocardial infarction. The risk may be further increased by lifestyle choices such as smoking and lack of exercise.

MANAGEMENT: Use of estrogen-containing drugs should be avoided in patients receiving anticoagulant therapy unless benefits are anticipated to outweigh the risks. Close clinical and laboratory monitoring are recommended if the combination is prescribed. Patients should be advised to promptly notify their physician if they experience potential signs and symptoms of blood clots such as chest pain, shortness of breath, sudden loss of vision, and pain, redness or swelling in an extremity.

References

Schrogie JJ, Solomon HM, Zieve PD "Effect of oral contraceptives on vitamin K-dependent clotting activity." Clin Pharmacol Ther 8 (1967): 670-5
Stangel JJ, Innerfield I, Reyniak JV, Stone ML "The effect of conjugated estrogens on coagulability in menopausal women." Obstet Gynecol 49 (1977): 314-6
Ku LL, Ward CO, Durgin SJ "A clinical study of drug interaction and anticoagulant therapy." Drug Intell Clin Pharm 4 (1970): 300-6
Koch-Weser J, Sellers EM "Drug interactions with coumarin anticoagulants (second of two parts)." N Engl J Med 285 (1971): 547-58
Meade TW "Oral contraceptives, clotting factors, and thrombosis." Am J Obstet Gynecol 142 (1982): 758-61
von Kaulla E, Droegemueller W, von Kaulla KN "Conjugated estrogens and hypercoagulability." Am J Obstet Gynecol 122 (1975): 688-92
Notelovitz M "Oral contraception and coagulation." Clin Obstet Gynecol 28 (1985): 73-83

Coumadin Injection

Generic Name: warfarin

Brand name: Coumadin, Jantoven

Synonyms: Coumadin

What is Coumadin Injection?

Demulen 1/50

Generic Name: ethinyl estradiol / ethynodiol

Brand name: Kelnor, Zovia 1/35, Zovia 1/50, Demulen 1/35, Demulen 1/50, Zovia 1/35e, Kelnor 1/50, Kelnor 1/35, Zovia 1/50e

Synonyms: Demulen 1/50 (Oral)

What is Demulen 1/50?

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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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