Comparing Femara vs Metformin
| Femara | Metformin |
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| Femara (letrozole) | Metformin |
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Prescription only
Femara is a treatment that may be used to reduce the risk of breast cancer recurrence in postmenopausal women and also to increase the chance of ovulation in women with polycystic ovary syndrome... View more |
Prescription only
Metformin improves how the body responds to insulin and it is effective for the treatment of type 2 diabetes. Taste disturbances, diarrhea, and other stomach-related side effects are common side... View more |
Related suggestions Female Infertility
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| More about Femara (letrozole) | More about Metformin | ||||||||||||||||
| Generic Status | |||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Femara has an average rating of 6.9 out of 10 from a total of 62 ratings on Drugs.com. 55% of reviewers reported a positive effect, while 16% reported a negative effect. |
Metformin has an average rating of 6.9 out of 10 from a total of 626 ratings on Drugs.com. 56% of reviewers reported a positive effect, while 19% reported a negative effect. |
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| Drug Class | |||||||||||||||||
| Side Effects | |||||||||||||||||
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Common side effects include:
See also: Femara side effects in more detail. |
Commonly reported side effects include:
See also: metformin side effects in more detail. |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Femara prices and generic prices |
View all metformin prices |
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| Dosage Form(s) Available | |||||||||||||||||
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| Brand Names | |||||||||||||||||
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N/A |
Glumetza, Riomet, Riomet ER | ||||||||||||||||
| Half Life The half-life of a drug is the time taken for the plasma concentration of a drug to reduce to half its original value. | |||||||||||||||||
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48 hours |
4.5 hours |
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| CSA Schedule ** View glossary of 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 D
Positive evidence of risk
See the full pregnancy warnings document. |
Category B
No proven risk in humans
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||||||||||
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A total of 99 drugs are known to interact with Femara:
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A total of 356 drugs are known to interact with metformin:
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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. |
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| Disease Interactions | |||||||||||||||||
| First Approval Date | |||||||||||||||||
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July 25, 1997 |
March 03, 1995 |
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| WADA Class View World Anti-Doping Agency classifications. | |||||||||||||||||
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N/A |
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| More Information | |||||||||||||||||
| Patient resources | |||||||||||||||||
| Professional Resources | |||||||||||||||||
| Related Treatment Guide | |||||||||||||||||
** 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.
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.