<p>Safe use of Pentazocine during pregnancy (other than labor) has not been established. Animal reproduction studies have not demonstrated&nbsp;teratogenic&nbsp;or embryotoxic effects. However, Pentazocine should be administered to pregnant patients (other than labor) only when, in the judgment of the physician, the potential benefits outweigh the possible hazards. Patients receiving Pentazocine during labor have experienced no adverse effects other than those that occur with commonly used analgesics. Pentazocine should be used with caution in women delivering premature infants.</p>