Comparing Estring vs Premarin
| Estring (estradiol) | Premarin (conjugated estrogens) |
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| Estring (estradiol) | Premarin (conjugated estrogens) |
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Prescription only
Prescribed for Atrophic Vaginitis, Atrophic Urethritis. Estring may also be used for purposes not listed in this medication guide. |
Prescription only
Prescribed for Atrophic Vaginitis, Atrophic Urethritis, Abnormal Uterine Bleeding, Breast Cancer - Palliative, Hypoestrogenism, Oophorectomy, Osteoporosis, Postmenopausal Symptoms, Primary Ovarian... View more |
Related suggestions Atrophic Vaginitis
Atrophic Urethritis
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| More about Estring (estradiol) | More about Premarin (conjugated estrogens) | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Estring has an average rating of 5.9 out of 10 from a total of 76 ratings on Drugs.com. 51% of reviewers reported a positive effect, while 38% reported a negative effect. |
Premarin has an average rating of 7.7 out of 10 from a total of 84 ratings on Drugs.com. 70% of reviewers reported a positive effect, while 17% 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 Estring side effects |
View all Premarin side effects |
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| Drug Class | |||||||||||||||||
| Generic Availability | |||||||||||||||||
| Lower cost generic approved | |||||||||||||||||
| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Estring prices |
View all Premarin prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Other estradiol brands include: Estrace Vaginal Cream, Imvexxy, Vagifem, Yuvafem | Other conjugated estrogens brands include: Premarin Intravenous | ||||||||||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||||||||||
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N/A |
N/A |
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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 258 drugs are known to interact with Estring:
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A total of 355 drugs are known to interact with Premarin:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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No known alcohol/food interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider. |
No known alcohol/food interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider. |
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| Disease Interactions | |||||||||||||||||
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| First Approval Date | |||||||||||||||||
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N/A |
May 08, 1942 |
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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 | |||||||||||||||||
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N/A |
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| 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:
Premarin
Premarin is used to treat symptoms of menopause such as hot flashes, and vaginal dryness. Learn ...
Estrace
Estrace (estradiol) is used to treat symptoms of menopause such as hot flashes and vaginal dryness ...
Botox
Botox is used for cosmetic purposes and to treat overactive bladder symptoms, urinary incontinence ...
Estradiol Patch
Estradiol Patch is used for atrophic urethritis, atrophic vaginitis, breast cancer, palliative ...
Vagifem
Vagifem vaginal inserts are used treat menopause symptoms such as dryness, burning, and irritation ...
Estrace Vaginal Cream
Estrace Vaginal Cream is used for atrophic urethritis, atrophic vaginitis
Prempro
Prempro (conjugated estrogens and medroxyprogesterone) is used to treat the symptoms of menopause ...
Conjugated estrogens
Conjugated estrogens is used for abnormal uterine bleeding, atrophic urethritis, atrophic ...
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.