Thanks for the query.
Obimet sr 500 contains metformin
. Which is generally considered as safe drug in pregnancy
It belongs to category B drugs in pregnancy according to FDA. Means animal studies showed that it will not cause any harm to the fetus but sufficient human studies are lacking.
So as benefits over weigh risks here you can use the medicine.
You should not stop taking the drug as it can lead to high glucose
levels in the body, insulin resistance
etc. Which can affect fertility
and also general health.
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