Flagyl vs. Adoxa

Are Flagyl and Adoxa the Same Thing?

Flagyl, Flagyl ER, and Flagyl Injection (metronidazole) and Adoxa (doxycycline) are antibiotics used to treat a variety of bacterial infections.

Flagyl is also used to treat protozoal infections.

Adoxa is also used to treat blemishes, bumps, and acne-like lesions caused by rosacea.

Flagyl and Adoxa are different types of antibiotics. Flagyl is a nitroimidazole antibiotic and Adoxa is a tetracycline antibiotic.

Side effects of Flagyl and Adoxa that are similar include nausea, stomach upset, vomiting, or diarrhea.

Side effects of Flagyl that are different from Adoxa include abdominal cramps, constipation, headache, weight loss, dizziness, dry mouth, dark-colored urine, or a metallic taste in the mouth or changes in taste.

Side effects of Adoxa that are different from Flagyl include skin rash or itching, or vaginal itching or discharge.

Both Flagyl and Adoxa may interact with blood thinners.

Flagyl may also interact with cimetidine, seizure medications, lithium, or disulfiram.

Adoxa may also interact with cholesterol-lowering medications, isotretinoin, tretinoin, antacids, products containing bismuth subsalicylate, minerals such as iron, zinc, calcium, magnesium, over-the-counter vitamin and mineral supplements, or penicillin antibiotics.

What Are Possible Side Effects of Flagyl?

Side effects of Flagyl include:

  • nausea,
  • abdominal cramps,
  • stomach upset,
  • vomiting,
  • diarrhea,
  • constipation,
  • headache,
  • weight loss (anorexia),
  • dizziness,
  • dry mouth,
  • dark-colored urine, or
  • a metallic taste in the mouth or changes in taste.

Uncomfortable side effects that may become serious are:

  • fevers,
  • pain with urination,
  • mouth sores,
  • tingling or pricking sensations that may become permanent,
  • brain disease, and
  • seizures.

Serious but unlikely side effects of Flagyl include:

What Are Possible Side Effects of Adoxa?

Common side effects of Adoxa include:

  • stomach upset,
  • diarrhea,
  • nausea,
  • vomiting,
  • skin rash or itching, or
  • vaginal itching or discharge

What is Flagyl?

What is Flagyl?

Flagyl, Flagyl ER, and Flagyl Injection (metronidazole) are antimicrobial drugs used to treat bacterial vaginosis, trichomonas, amebiasis, and anaerobic bacterial infections.

What Is Adoxa?

What Is Adoxa?

Adoxa (doxycycline) is a tetracycline antibiotic used to treat many different bacterial infections, such as urinary tract infections, acne, gonorrhea, and chlamydia, periodontitis (gum disease), and others. Adoxa is also used to treat blemishes, bumps, and acne-like lesions caused by rosacea.

SLIDESHOW

Fungal Skin Infections: Types, Symptoms, and Treatments See Slideshow

What Drugs Interact With Flagyl?

Flagyl may interact with blood thinners or seizure medications.

Flagyl may also interact with cimetidine, lithium, or disulfiram.

What Drugs Interact With Adoxa?

Adoxa may interact with cholesterol-lowering medications, isotretinoin, tretinoin, antacids, products containing bismuth subsalicylate, minerals such as iron, zinc, calcium, magnesium, over-the-counter vitamin and mineral supplements, blood thinners, or penicillin antibiotics. Tell your doctor all medications and supplements you use. Adoxa is not recommended for use during pregnancy. It may harm a fetus. Consult your doctor to discuss using birth control while taking this medication. This drug passes into breast milk but is unlikely to harm a nursing infant. Consult your doctor before breastfeeding.

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 Adoxa Be Taken?

The usual adult dose of oral Adoxa is 200 mg on the first day of treatment (taken 100 mg every 12 hours or 50 mg every 6 hours) followed by a maintenance dose of 100 mg/day. The maintenance dose may be taken as a single dose or as 50 mg every 12 hours.

QUESTION

Bowel regularity means a bowel movement every day. See Answer
Disclaimer

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.

References

DailyMed. Flagyl Product Information.
https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=a2883ca1-5a9a-4259-9d80-46ab67274384&audience=consumer
DailyMed. Adoxa Prescribing Information.
https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=0cecc43f-cc40-4c48-9e43-ae8d77af4e49&audience=consumer

Health Solutions From Our Sponsors