Menidazole

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 consumed foods or medicines that contain propylene glycol in the past 3 days or took disulfiram (Antabuse) within the past 14 days have Cockayne Syndrome (a rare genetic disorder that affects growth and development)

Before taking metronidazole, tell your healthcare provider about all of your medical conditions, including if you: liver disease kidney disease (or if you are on dialysis) a heart rhythm disorder a stomach or intestinal disease such as Crohn's disease a blood cell disorder such as anemia (lack of red blood cells) or low white blood cell (WBC) counts medical problems that affect the brain or a nerve disorder a yeast infection or a fungal infection anywhere in your body a history of blood problems or take any medications, especially warfarin, lithium, busulfan, cimetidine, phenytoin, or phenobarbital

Tell your doctor if you are pregnant or intend to become pregnant

The use of metronidazole during pregnancy has been well-studied and a review of 17 studies found that treating bacterial vaginosis and trichomoniasis with metronidazole reduced the risk of preterm birth and was effective and offered no teratogen risk

Conversely, isolated studies have suggested its use may result in low birth weight or preterm delivery