Flagyl ER Alternatives Compared
| Flagyl ER (metronidazole) | Metronidazole | Clindamycin |
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| Flagyl ER (metronidazole) | Metronidazole | Clindamycin |
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Prescription only
Prescribed for Bacterial Vaginosis, Balantidium coli, Dientamoeba fragilis, Nongonococcal Urethritis, STD Prophylaxis. Flagyl ER may also be used for purposes not listed in this medication guide. |
Prescription only
Metronidazole is an antibiotic that is particularly effective at treating infections caused by susceptible anaerobic bacteria and parasites. Alcohol and products containing propylene glycol should... View more |
Prescription only
Clindamycin is an antibiotic that is usually reserved for treating anaerobic infections or other serious infections caused by gram-positive bacteria in penicillin-allergic people. Clindamycin vaginal... View more |
Related suggestions Bacterial Vaginosis
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| More about Flagyl ER (metronidazole) | More about Metronidazole | More about Clindamycin | ||||||||||||||||
| Ratings & Reviews | ||||||||||||||||||
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Flagyl ER has an average rating of 6.4 out of 10 from a total of 8 ratings on Drugs.com. 50% of reviewers reported a positive effect, while 25% reported a negative effect. |
Metronidazole has an average rating of 6.0 out of 10 from a total of 2433 ratings on Drugs.com. 44% of reviewers reported a positive effect, while 29% reported a negative effect. |
Clindamycin has an average rating of 5.7 out of 10 from a total of 808 ratings on Drugs.com. 43% of reviewers reported a positive effect, while 35% 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. | ||||||||||||||||||
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View all Flagyl ER side effects |
View all Metronidazole side effects |
View all Clindamycin side effects |
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| Drug Class | ||||||||||||||||||
| Generic Availability | ||||||||||||||||||
| Lower cost generic approved |
Lower cost generic |
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 Metronidazole prices |
View all Clindamycin prices |
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| Dosage Forms | ||||||||||||||||||
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| Brand Names | ||||||||||||||||||
| Other metronidazole brands include: Flagyl, Flagyl 375, Flagyl IV, Likmez, Metro, Metro IV | Flagyl, Flagyl 375, Flagyl IV, Likmez, Metro, Metro IV | Cleocin, Cleocin HCl, Cleocin Pediatric, Cleocin Phosphate, Cleocin Phosphate ADD-Vantage | ||||||||||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | ||||||||||||||||||
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20 hours |
20 hours |
3.4 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. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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| Pregnancy Category | ||||||||||||||||||
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Category B
No proven risk in humans
See the full pregnancy warnings document. |
Category B
No proven risk in humans
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 393 drugs are known to interact with Flagyl ER:
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A total of 393 drugs are known to interact with Metronidazole:
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A total of 117 drugs are known to interact with Clindamycin:
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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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N/A |
July 18, 1963 |
February 22, 1970 |
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| WADA Class View classifications | ||||||||||||||||||
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N/A |
N/A |
N/A |
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| More Information | ||||||||||||||||||
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| Related Treatment Guide | ||||||||||||||||||
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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.