<prompt> Which of the following is not true regarding tetracycline -It is not teratogenicIt can cause tooth discolorationIt can result in superinfectionIt can lead to pseudomembranous colitis.  <response>: Ans. is a i.e., It is not teratogenic o Tetracycline is teratogenic - causes discoloration and defects of teeth and altered bone growth of the fetus. o Tetracycline can cause superinfection including pseudomembranous colitis. 