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Gris-PEG and Junel Fe 1.5/30

Determining the interaction of Gris-PEG and Junel Fe 1.5/30 and the possibility of their joint administration.

Check result:

Gris-PEG <> Junel Fe 1.5/30

Relevance: 21.07.2022 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 ethinyl estradiol together with griseofulvin. Combining these medications may decrease the blood levels and effects of ethinyl estradiol. If you are using low-dose oral contraceptives, you may have an increased risk of breakthrough bleeding and unintended pregnancy. Because use of griseofulvin has been associated with birth defects, it is particularly important that you do not become pregnant during treatment. You should discuss the use of alternative or additional methods of birth control with your healthcare provider. Your doctor may also be able to prescribe alternatives that do not interact. If you take hormone replacement for menopause, notify your doctor if your medication is no longer controlling your symptoms or you experience abnormal bleeding. You may need a dose adjustment or more frequent monitoring by your doctor 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:

ADDITIONAL CONTRACEPTION RECOMMENDED: Limited clinical data suggest that griseofulvin may reduce the efficacy of contraceptive hormones. There have been case reports of menstrual abnormalities (e.g., breakthrough bleeding, amenorrhea, irregular menses) or unintended pregnancy following the addition of griseofulvin in patients receiving long-term oral contraceptives. The proposed mechanism is accelerated clearance of the hormones due to induction of hepatic CYP450 enzymes by griseofulvin. However, data evaluating the clinical significance of the enzyme-inducing effects of griseofulvin in humans are lacking.

MANAGEMENT: Women using low-dose hormonal contraceptives should be advised of the risk of breakthrough bleeding and unintended pregnancy during concomitant therapy with griseofulvin. Because griseofulvin has been shown to be teratogenic in animal studies and is capable of inducing aneuploidy (abnormal segregation of chromosomes following cell division) in mammalian cells in vitro and in vivo, it is particularly important that patients not become pregnant during treatment. Therefore, additional methods of birth control should be used during and for one month after griseofulvin therapy. Input from a gynecologist or similar expert on adequate contraception, including emergency contraception, should be sought as needed. Intrauterine systems are unlikely to be significantly affected because of their local action.

References

"FFPRHC Guidance (April 2005). Drug interactions with hormonal contraception." J Fam Plann Reprod Health Care 31 (2005): 139-51
van Dijke CP, Weber JC "Interaction between oral contraceptives and griseofulvin." Br Med J (Clin Res Ed) 288 (1984): 1125-6
Cote J "Interaction of griseofulvin and oral contraceptives." J Am Acad Dermatol 22 (1990): 124-5
Weisberg E "Interactions between oral contraceptives and antifungals antibacterials - Is contraceptive failure the result?." Clin Pharmacokinet 36 (1999): 309-13
Dickinson BD, Altman RD, Nielsen NH, Sterling ML "Drug interactions between oral contraceptives and antibiotics." Obstet Gynecol 98(5 Pt 1) (2001): 853-60
Bollen M "Use of antibiotics when taking the oral contraceptive pill." Aust Fam Physician 24 (1995): 928-9
Back DJ, Grimmer SF, Orme ML, Proudlove D, Mann RD, Breckenridge AM "Evaluation of Committee on Safety of Medicines yellow card reports on oral contraceptive-drug interactions with anticonvulsants and antibiotics." Br J Clin Pharmacol 25 (1988): 527-32
McDaniel PA, Caldroney RD "Oral contraceptives and griseofulvin interaction." Drug Intell Clin Pharm 20 (1986): 384
Weaver K, Glasier A "Interaction between broad-spectrum antibiotics and the combined oral contraceptive pill: a literature review." Contraception 59 (1999): 71-8
Faculty of Sexual & Reproductive Healthcare "FSRH Clinical Guidance: Drug Interactions with Hormonal Contraception. Available from: URL: file:///C:/Users/df033684/Downloads/ceuguidancedruginteractionshormonal.pdf." ([2012, Jan 1]):
Weber JC "Interaction between oral contraceptives and griseofulvin." Br Med J 288 (1984): 1125-6
"Product Information. Grifulvin V (griseofulvan)." Ortho Pharmaceuticals, Raritan, NJ. (1992):
Helms SE, Bredle DL, Zajic J, Jarjoura D, Brodell RT, Krishnarao I "Oral contraceptive failure rates and oral antibiotics." J Am Acad Dermatol 36 (1997): 705-10

Gris-PEG

Generic Name: griseofulvin

Brand name: Gris-PEG, Grifulvin V, Fulvicin P/G, Fulvicin U/F, Grisactin Ultra, Grisactin 250, Grisactin 500, Griseofulicin, Griseofulvic

Synonyms: n.a.

What is Gris-PEG?

Junel Fe 1.5/30

Generic Name: ethinyl estradiol / norethindrone

Brand name: Blisovi 24 Fe, Blisovi Fe 15/30, Blisovi Fe 1/20, Estrostep Fe, Gildess 24 Fe, Gildess Fe 15/30, Gildess Fe 1/20, Junel Fe 15/30, Junel Fe 1/20, Junel Fe 24, Larin 24 Fe, Larin Fe 15/30, Larin Fe 1/20, Lo Loestrin Fe, Loestrin 24 Fe, Loestrin Fe 15/30, Loestrin Fe 1/20, Lomedia 24 Fe, Microgestin 24 Fe, Microgestin Fe 15/30, Microgestin Fe 1/20, Tarina Fe 1/20, Taytulla, Tilia Fe, Tri-Legest Fe, Blisovi 24 Fe, Femcon Fe, Kaitlib FE, Lo Minastrin Fe, Microgestin 24 Fe, Norinyl 1+35, Ortho-Novum 7/7/7, Tri-Norinyl, Zenchent, femhrt 05 mg/25 mcg, Fyavolv, Jevantique Lo, Jinteli, Femcon Fe, Generess FE, Loestrin 1/20, Ovcon 35, Brevicon

Synonyms: n.a.

What is Junel Fe 1.5/30?

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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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