My doctor has given me mirt and sertraline is it safe?? what other sleeping ones can i have ?? that don't make u gain weight

Meds and weigh gain: If your doctor advised you to add Mirtazepine to Sertraline, it must be because your insomnia is a symptom of a depressive disorder. Of course, the Mirtazepine is also antidepressant through some other neurotransmitters involved in mood regulation. As Mirtazepine and to a lesser degree Sertraline might increase weight, you might ask your MD to consider Trazodone or Zolpidem.