Good morning, won't 2*1000 a day of vitamin C affect the effectiveness of microgynon 21 tablets? I vitamin d34000j
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Anna Tyrańska Pharmacist
4 years ago
Vitamin C used in a dose above 1000 mg can change the absorption and concentration of ethinyl estradiol and make the cycle irregular, therefore the use of vitamin C in a dose of up to 2000mg per day can really affect the effectiveness of contraception and I would advise against such a dosage of this vitamin. As for vitamin D - here there are no contraindications, you can use it in the above-mentioned dose. I encourage you to read - https://www.gdziepolek.pl/artykuly/jakie-leki-oslabiaja-skutecznosc-antykoncepcji