Weight gain associated with certain medications is primarily linked to:

Weight gain associated with certain medications is primarily linked to both antipsychotic and antidepressant medications. Antipsychotic medications, particularly atypical antipsychotics, have been well-documented to cause weight gain due to their effects on metabolic processes and appetite regulation. These medications can lead to increased appetite and food intake, resulting in significant weight gain in some patients.

Similarly, certain antidepressants, especially those in the class of selective serotonin reuptake inhibitors (SSRIs) and tricyclic antidepressants, have also been associated with weight gain. Changes in serotonin and other neurotransmitter levels can influence appetite and carbohydrate cravings, leading to an increase in weight over time.

Thus, both classes of medications play a role in weight gain, making the correct response that weight gain is linked to both antipsychotics and antidepressants. Recognizing these medication-related effects is crucial for healthcare professionals to adequately monitor and manage the weight of patients on these treatments.