Antibacterials such as metronidazole may be beneficial in patients with Crohn’s disease. The available indicant suggests that short circuit courses (7 to 10 days) of metronidazole are not associated with increased risks of malformations, stillbirths, emergence hold or prematurity; nevertheless, this drug is currently recommended for use in the unit of time and position trimesters only. There are no published data available on the preventive of prolonged metronidazole therapy.
Ciprofloxacin may be used as an alternative to metronidazole in patients with Crohn’s disease.
Although the limited data suggest that there is no grounds of teratogenicity, the drug has a high chemical attraction for bone paper and juvenile animals may develop arthropathy masses forsaking in pregnancy.
This is a part of article Weighing the Risks for Pregnant Women with Inflammatory Bowel Disease Taken from "Cipro (Ciprofloxacin) Common & Detailed Reviews" Information Blog