Can metronidazole harm you?

Serious side effects can occur while taking metronidazole tablets or capsules. These are all rare, however. Cancer: Metronidazole tablets and capsules have a black box warning. This is the most serious warning from the Food and Drug Administration (FDA).

Why is metronidazole bad?

Metronidazole side effects are notorious for causing an upset stomach and killing your appetite. For many people, the nausea — and even vomiting — can occur just from the bad taste. Heartburn, constipation, and diarrhea can occur, too.

Who should not take metronidazole?

You should not use this medicine if you are allergic to metronidazole, secnidazole, or tinidazole, or if: you drank alcohol in the past 3 days; you consumed foods or medicines that contain propylene glycol in the past 3 days; or. you took disulfiram (Antabuse) within the past 14 days.

Can flagyl cause long term side effects?

Serious side effects of Flagyl and Flagyl ER include brain disease, fevers, mouth sores, painful urination, nerve damage resulting in prickling or tingling sensations that may become permanent, cystitis, pelvic pain or pressure, decreased sex drive, inflammation of the lining of the rectum, inflammation of the mouth …

What are the main side effects of metronidazole?

Dizziness, headache, stomach upset, nausea, vomiting, loss of appetite, diarrhea, constipation, or metallic taste in your mouth may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.

Is propylene glycol safe with Flagyl?

Metronidazole interacts with alcohol and propylene glycol (a food additive). Symptoms include abdominal cramps, nausea, vomiting, headaches, and flushing. Avoid alcohol and products containing propylene glycol while taking metronidazole.

Is Flagyl hard on the kidneys?

Flagyl (metronidazole) can be hard on your kidneys and liver. Taking Flagyl (metronidazole) while you have kidney or liver disease can make these diseases even worse. Your doctor may need to limit your dose or give you a different drug.

How long can you take metronidazole for?

Most courses of metronidazole last for around seven days, but some may be as short as three days and some as long as 14 days. For certain infections you may be given a single, larger dose of metronidazole, usually five 400 mg tablets (2 g) to take at once.

Can you take metronidazole everyday?

Adults—Dose is based on body weight and must be determined by your doctor. The dose is usually 7.5 milligrams (mg) per kilogram (kg) of body weight every 6 hours for 7 to 10 days. Your doctor may increase your dose as needed. However, the dose is usually not more than 4000 mg per day.

Can Flagyl cause long term side effects?

Does metronidazole cause depression?

In addition, patients have reported headache, syncope, dizziness, vertigo, incoordination, ataxia, confusion, dysarthria, irritability, depression, weakness, and insomnia (see WARNINGS).