system
Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: OBJECTIVE, CASE REPORT. Meshes: Antitubercular Agents, Female, Humans, Infant, Newborn, Male, Pregnancy, Pregnancy Complications, Infectious, Rifampin, Tuberculosis, Upper Extremity Deformities, Congenital, Young Adult.
user
Limb deformity in a newborn. Is rifampicin just an innocent bystander? Context: The first-line antituberculous agents for use during pregnancy have minimal teratogenic effects. The possibility of limb deformity during rifampin use, however, was reported by some researchers. A male newborn was born with a hypoplastic right forearm to a mother with tuberculosis who used isoniazid and rifampicin in the first two months of her pregnancy.
assistant
The limb anomaly in our case might be attributed to rifampicin usage during the first 2 months of pregnancy. Caution should be given with regard to possible congenital malformations which could be associated with the treatment of pregnant women with antituberculous drugs.