My psychiatrist put me on 7.5 mg of Mirtazapine which obviously is less than what you are taking but it took a few days to over come the side effects which involved me feeling very dizzy and sleepy. It is worth waiting a few days and being patient to let your body get used to the drug. I was lucky enough to be in hospital when I first was taking the drug so I could just go to bed but felt so. I have been taking this medicine for many years for sleep at the lowest dose of 7.5 mg. It works fantastic for sleep. Even after taking it for so long I have not built a tolerance to it and it continues to get me to sleep fast and keeps me asleep throughout the night. March 5 Dear Colleagues: It is hard for me to write this note to share with you the news that I’ll be leaving my job as the Commissioner. A Note from the Commissioner The National Library of Medicine (NLM), on the NIH campus in Bethesda, Maryland, is the world's largest biomedical library and the developer of electronic information services that delivers data to millions of scientists, health professionals and members of the public around the globe, every day. Mirtazapine is used in the treatment of major depressive disorder; depression (and more), and belongs to the drug class tetracyclic antidepressants. Risk cannot be ruled out during pregnancy. Mirtazapine 7.5 mg is not a controlled substance under the Controlled Substances Act (CSA). Mirtazapine is an antidepressant. The way this medication works is still not fully understood. It is thought to positively affect communication between nerve cells in the central nervous system and/or restore chemical balance in the brain. mirtazapine 7.5 mg tablet. mirtazapine 7.5 mg tablet. color yellow shape round imprint C. mirtazapine 15 mg tablet. mirtazapine 15 mg tablet. color yellow shape oval imprint 499. mirtazapine 30 mg. REMERON is supplied for oral administration as scored film-coated tablets containing 15 or 30 mg of mirtazapine, and unscored film-coated tablets containing 45 mg of mirtazapine. Each tablet also contains corn starch, hydroxypropyl cellulose, magnesium stearate, colloidal silicon dioxide, lactose, and other inactive ingredients. Mirtazapine, sold under the brand name Remeron among others, is an antidepressant primarily used to treat depression. Its full effect may take more than four weeks to occur, with some benefit possibly as early as one to two weeks.