Are Flagyl and Keflex the Same Thing?
Flagyl and Keflex are different types of antibiotics. Flagyl is a nitroimidazole antibiotic and Keflex is a cephalosporin antibiotic.
What Are Possible Side Effects of Flagyl?
Side effects of Flagyl include:
- abdominal cramps,
- stomach upset,
- weight loss (anorexia),
- dry mouth,
- dark-colored urine, or
- a metallic taste in the mouth or changes in taste.
Uncomfortable side effects that may become serious are:
- pain with urination,
- mouth sores,
- tingling or pricking sensations that may become permanent,
- brain disease, and
Serious but unlikely side effects of Flagyl include:
- mood changes,
- numbness or tingling of the hands or feet, and
- painful urination.
What Are Possible Side Effects of Keflex?
Common side effects of Keflex include:
- stomach upset,
- abdominal pain,
- joint pain,
- vaginal itching or discharge,
- swelling, and
What is Flagyl?
What is Keflex?
What is Keflex?
Keflex (cephalexin) is a cephalosporin antibiotic prescribed to treat bacterial infections. Keflex is also used before dental procedures in patients identified with certain heart-related conditions to prevent bacterial infections of the heart known as endocarditis.
How Should Flagyl Be Taken?
Flagyl is supplied in 250 and 500 mg strength tablets, Flagyl ER is available in 750 mg strength tablets, and Flagyl Injection in 500 mg strength in a buffered 100 ml vial. Dosage is quite variable and dependent upon the severity of disease and other considerations made by the treating physician. Most of the serious side effects may occur with any of these three preparations of Flagyl. Flagyl may cause liver enzyme levels to increase; lithium and creatinine levels should be checked to avoid lithium toxicity or renal compromise. Alcohol may increase the side effects of Flagyl. Patients on disulfiram should not take Flagyl until they have had a two week interval without taking disulfiram, especially alcoholic patients, to avoid psychotic reactions. Treatment in pregnant women (during first 3 months is not advised) or women who are breastfeeding should only be done if the benefits outweigh the potential problems. Flagyl passes into breast milk and may harm a nursing baby. Consult your doctor before breastfeeding. Except for use in amebiasis, studies in pediatric patients are not available; Flagyl ER has no pediatric studies.
How Should Keflex Be Taken?
Keflex dosage depends on the condition being treated.
All drug information provided on RxList.com is sourced directly from drug monographs published by the U.S. Food and Drug Administration (FDA).
Any drug information published on RxList.com regarding general drug information, drug side effects, drug usage, dosage, and more are sourced from the original drug documentation found in its FDA drug monograph.
Drug information found in the drug comparisons published on RxList.com is primarily sourced from the FDA drug information. The drug comparison information found in this article does not contain any data from clinical trials with human participants or animals performed by any of the drug manufacturers comparing the drugs.
The drug comparisons information provided does not cover every potential use, warning, drug interaction, side effect, or adverse or allergic reaction. RxList.com assumes no responsibility for any healthcare administered to a person based on the information found on this site.
As drug information can and will change at any time, RxList.com makes every effort to update its drug information. Due to the time-sensitive nature of drug information, RxList.com makes no guarantees that the information provided is the most current.
Any missing drug warnings or information does not in any way guarantee the safety, effectiveness, or the lack of adverse effects of any drug. The drug information provided is intended for reference only and should not be used as a substitute for medical advice.
If you have specific questions regarding a drug’s safety, side effects, usage, warnings, etc., you should contact your doctor or pharmacist, or refer to the individual drug monograph details found on the FDA.gov or RxList.com websites for more information.
You may also report negative side effects of prescription drugs to the FDA by visiting the FDA MedWatch website or calling 1-800-FDA-1088.
RxList. Flagyl Medication Guide.
RxList. Keflex Side Effects Drug Center.