Oral Clindamycin in First Trimester

Generally, taking oral clindamycin in the first trimester of pregnancy is not associated with an increased risk of organ related malfunctions. There’s no conclusive studies that proves it does. The American fda categorises this as a level B drug during pregnancy. A category b drug is where Animal reproduction studies have failed to demonstrate a risk to the fetus and there are no adequate and well-controlled studies in pregnant women That said there are studies that have shown the negative impact of taking clindamycin during breastfeeding. Clindamycin has the potential to cause adverse effects on the breastfed infant's gastrointestinal flora. If oral or intravenous clindamycin is required by a nursing mother, it is not a reason to discontinue breastfeeding, but an alternate drug may be preferred.

I was like you too initially , googling this and googling that to find out the side effect of clindamycin to treat BV, stressing myself out. My husband reassured me to trust the gynae that the medication for pregnancy is safe to be taken, otherwise they wouldn't prescribe unnecessarily.

I completed my course of antibiotic at week 9-10 as well. It’s more important to treat BV now because it may increase the chances of miscarriages. I had bleeding for 5-6 days possibly due to BV so I rather take the antibiotics to ensure my fetus is safe. Hope this helps.