Comparing Norethindrone vs Twirla
| Norethindrone | Twirla (ethinyl estradiol / levonorgestrel) |
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| Norethindrone | Twirla (ethinyl estradiol / levonorgestrel) |
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Prescription only
Prescribed for Abnormal Uterine Bleeding, Endometriosis, Amenorrhea, Gender Affirming Hormone Therapy, Birth Control. Norethindrone may also be used for purposes not listed in this medication guide. |
Prescription only
Prescribed for Birth Control. Twirla may also be used for purposes not listed in this medication guide. |
Related suggestions |
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| More about Norethindrone | More about Twirla (ethinyl estradiol / levonorgestrel) | ||||||||
| Ratings & Reviews | |||||||||
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Norethindrone has an average rating of 4.9 out of 10 from a total of 1575 ratings on Drugs.com. 33% of reviewers reported a positive effect, while 45% reported a negative effect. |
Twirla has an average rating of 4.0 out of 10 from a total of 2 ratings on Drugs.com. 0% of reviewers reported a positive effect, while 50% reported a negative effect. |
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| Side Effects Experienced by Users Side effects are reported in Drugs.com user reviews and not clinically verified. | |||||||||
View all Norethindrone side effects |
View all Twirla side effects |
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| Drug Class | |||||||||
| Generic Availability | |||||||||
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Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | |||||||||
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We could not find an exact match for this medicine. Try searching the Price Guide directly. |
View all Twirla prices |
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| Dosage Forms | |||||||||
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| Brand Names | |||||||||
| Affodel, Camila, Deblitane, Emzahh, Errin, Gallifrey, Heather, Incassia, Jencycla, Lyleq, Lyza, Meleya, Nor-QD, Norlyda, Norlyroc, Orquidea, Sharobel, Tulana View more | Other ethinyl estradiol / levonorgestrel brands include: Afirmelle, Altavera, Amethia, Amethia Lo, Amethyst, Ashlyna, Aubra, Aubra EQ, Aviane, Ayuna, Balcoltra, Camrese, CamreseLo, Cerinta, Chateal, Chateal EQ, Daysee, Delyla, Dolishale, Elifemme, Enpresse, Falmina, Fayosim, Iclevia, Introvale, Jaimiess, Jolessa, Joyeaux, Kurvelo, Larissia, Lessina, Levlen, Levonest, Levora, Lillow, Lo Simpesse, LoJaimiess, LoSeasonique, Lutera, Marlissa, Minzoya, Myzilra, Orsythia, Portia, Quartette, Rivelsa, Rosyrah, Seasonale, Seasonique, Setlakin, Simpesse, Sronyx, Trivora, Tyblume, Vienva View more | ||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||
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10 hours |
45 hours |
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| CSA Schedule 1 View glossary of CSA terms | |||||||||
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Not a controlled drug
Is not subject to the Controlled Substances Act. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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| Pregnancy Category | |||||||||
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Category X
Not for use in pregnancy
See the full pregnancy warnings document. |
Category X
Not for use in pregnancy
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||
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A total of 267 drugs are known to interact with Norethindrone:
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A total of 499 drugs are known to interact with Twirla:
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| Alcohol/Food/Lifestyle Interactions | |||||||||
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| Disease Interactions | |||||||||
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| First Approval Date | |||||||||
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April 21, 1982 |
February 14, 2020 |
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| WADA Class View classifications | |||||||||
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N/A |
N/A |
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| More Information | |||||||||
| Patient Resources | |||||||||
| Professional Resources | |||||||||
| Related Treatment Guide | |||||||||
1 The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.
See also:
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.