Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate has 48 known drug interactions based on U.S. FDA drug labeling data. Of these, 2 are contraindicated combinations that should be avoided entirely. Notable interactions include combinations with Dasabuvir, Ombitasvir/Paritaprevir/Ritonavir, Acetaminophen. Patients taking Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate should inform their healthcare provider of all current medications — including over-the-counter drugs and supplements — to avoid potentially harmful combinations. Data sourced from OpenFDA and the NIH National Library of Medicine.
- Total
- 48
- Contraindicated
- 2
- Moderate
- 43
Contraindicated (2)
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Dasabuvir— Do not co-administer (when used with ombitasvir/paritaprevir/ritonavir) due to potential for ALT elevations.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Ombitasvir/Paritaprevir/Ritonavir— Do not co-administer due to potential for ALT elevations.
Moderate (43)
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Acetaminophen— Acetaminophen may increase plasma ethinyl estradiol levels.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Amprenavir— HIV protease inhibitor (with ritonavir) may significantly decrease plasma concentrations of estrogen and/or progestin.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Aprepitant— Induces CYP3A4, may decrease plasma concentrations of COCs and diminish effectiveness or increase breakthrough bleeding.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Ascorbic Acid— Ascorbic acid may increase plasma ethinyl estradiol levels.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Atazanavir— HIV protease inhibitor (with ritonavir) may significantly increase plasma concentrations of estrogen and/or progestin.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Atorvastatin— Co-administration increases AUC values for ethinyl estradiol by approximately 20%.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Barbiturates— Barbiturates induce CYP3A4 enzymes, potentially decreasing contraceptive effectiveness and increasing breakthrough bleed…
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Boceprevir— HCV protease inhibitor that may decrease plasma concentrations of estrogen and/or progestin.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Bosentan— Bosentan induces CYP3A4 enzymes, potentially decreasing contraceptive effectiveness and increasing breakthrough bleeding…
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Carbamazepine— Carbamazepine induces CYP3A4 enzymes, potentially decreasing contraceptive effectiveness and increasing breakthrough ble…
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Colesevelam— Bile acid sequestrant significantly decreases AUC of ethinyl estradiol; effect reduced when given 4 hours apart.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Cyclosporine— COCs containing ethinyl estradiol may inhibit the metabolism of cyclosporine.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Darunavir— HIV protease inhibitor (with ritonavir) may significantly decrease plasma concentrations of estrogen and/or progestin.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Efavirenz— Non-nucleoside reverse transcriptase inhibitor that may decrease plasma concentrations of estrogen and/or progestin.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Etravirine— Non-nucleoside reverse transcriptase inhibitor may significantly increase plasma concentrations of estrogen and/or proge…
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Felbamate— Felbamate induces CYP3A4 enzymes, potentially decreasing contraceptive effectiveness and increasing breakthrough bleedin…
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Fluconazole— CYP3A4 inhibitor may increase plasma hormone concentrations.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Fosamprenavir— HIV protease inhibitor (with ritonavir) may significantly decrease plasma concentrations of estrogen and/or progestin.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Grapefruit Juice— CYP3A4 inhibitor may increase plasma hormone concentrations.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Griseofulvin— Griseofulvin induces CYP3A4 enzymes, potentially decreasing contraceptive effectiveness and increasing breakthrough blee…
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Indinavir— HIV protease inhibitor may significantly increase plasma concentrations of estrogen and/or progestin.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Itraconazole— CYP3A4 inhibitor itraconazole may increase plasma hormone levels.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Ketoconazole— CYP3A4 inhibitor ketoconazole may increase plasma hormone levels.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Lamotrigine— COCs have been shown to significantly decrease plasma concentrations of lamotrigine.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Lopinavir— HIV protease inhibitor (with ritonavir) may significantly decrease plasma concentrations of estrogen and/or progestin.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Lopinavir And Ritonavir— HIV protease inhibitor combination that may decrease plasma concentrations of estrogen and/or progestin.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Nelfinavir— HIV protease inhibitor may significantly decrease plasma concentrations of estrogen and/or progestin.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Nevirapine— Non-nucleoside reverse transcriptase inhibitor may significantly decrease plasma concentrations of estrogen and/or proge…
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Oxcarbazepine— Oxcarbazepine induces CYP3A4 enzymes, potentially decreasing contraceptive effectiveness and increasing breakthrough ble…
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Phenytoin— Phenytoin induces CYP3A4 enzymes, potentially decreasing contraceptive effectiveness and increasing breakthrough bleedin…
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Prednisolone— COCs containing ethinyl estradiol may inhibit the metabolism of prednisolone.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Rifabutin— Induces CYP3A4, may decrease plasma concentrations of COCs and diminish effectiveness or increase breakthrough bleeding.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Rifampin— Rifampin induces CYP3A4 enzymes, potentially decreasing contraceptive effectiveness and increasing breakthrough bleeding…
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Ritonavir— HIV protease inhibitor may significantly decrease plasma concentrations of estrogen and/or progestin.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Rosuvastatin— Increases AUC values for ethinyl estradiol by approximately 20-25%.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Rufinamide— Induces CYP3A4, may decrease plasma concentrations of COCs and diminish effectiveness or increase breakthrough bleeding.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + St. John'S Wort— St. John's wort induces CYP3A4 enzymes, potentially decreasing contraceptive effectiveness and increasing breakthrough b…
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Telaprevir— HCV protease inhibitor that may decrease plasma concentrations of estrogen and/or progestin.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Theophylline— COCs containing ethinyl estradiol may inhibit the metabolism of theophylline.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Tipranavir— HIV protease inhibitor (with ritonavir) may significantly decrease plasma concentrations of estrogen and/or progestin.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Tizanidine— COCs containing ethinyl estradiol may inhibit the metabolism of tizanidine.
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Topiramate— Topiramate induces CYP3A4 enzymes, potentially decreasing contraceptive effectiveness and increasing breakthrough bleedi…
- Levonorgestrel And Ethinyl Estradiol And Ferrous Fumarate + Voriconazole— COCs containing ethinyl estradiol may inhibit the metabolism of voriconazole.