Final answer:
SSRIs in the 3rd trimester may cause complications such as Persistent Pulmonary Hypertension of the Newborn (PPHN).
Step-by-step explanation:
SSRIs, or Selective Serotonin Reuptake Inhibitors, are a type of antidepressant medication commonly prescribed to pregnant women. While they are generally considered safe to use during pregnancy, there have been some concerns about their use in the third trimester. Research suggests that SSRIs may increase the risk of certain complications in the newborn, including a condition called Persistent Pulmonary Hypertension of the Newborn (PPHN). PPHN is a serious lung disorder that can cause difficulty breathing and require intensive medical treatment.