However, if it is nearly time for your next dose, take that one and keep to your regular daily schedule. Do not double up doses. Gastrointestinal Nausea, vomiting, diarrhea, stomach pain or cramps, loss of appetite. Taking metronidazole with meals should reduce such side effects. Central nervous system Headache, dizziness, drowsiness, lightheadedness.
Dark urine Occurs in certain cases.
This effect is temporary and will disappear when the medication is stopped. Numbness, tingling, burning sensation, pain or weakness of hands or feet. Contact your physician. Your physician will adjust your treatment if necessary. The anticoagulant effects of warfarin may be increased.