Invirase and Zovia 1/50

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.

Saquinavir may reduce the blood levels and effects of ethinyl estradiol. If you are using ethinyl estradiol for birth control, you may be at increased risk for pregnancy or breakthrough bleeding. You may need an alternative or additional method of birth control during or after treatment with saquinavir in order to avoid an unintended pregnancy. Let your doctor know if you experience bleeding outside of your menstrual cycle, since it may indicate reduced effectiveness of ethinyl estradiol. 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.

ADDITIONAL CONTRACEPTION RECOMMENDED: Coadministration with saquinavir-ritonavir may decrease the plasma concentrations of estrogen-containing oral contraceptives. The precise mechanism of interaction is unknown but may involve hepatic enzyme induction.

MANAGEMENT: Women using oral contraceptives should be advised of the risk of breakthrough bleeding and unintended pregnancy during concomitant therapy with ritonavir. Alternative or additional methods of birth control should be used during concomitant therapy with saquinavir-ritonavir.

Invirase

Generic Name: saquinavir

Brand name: Invirase, Fortovase

Synonyms: n.a.

What is Invirase?

Zovia 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: Zovia 1/50E

What is Zovia 1/50?