Yes, this is OK together. Remember to take all of your metronidazole even after you start feeling better. You want to kill all the bacteria and not leave any hiding in your body! Also remember that...
There are no known drug interactions between metronidazole gel and Nuva Ring.
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Not at all. 5/4 time is much more complex.
Yes, if you go straight up from Ohio to Canada it is the same time but if it is western Canada you have different times?