Generic name: Mirtazapine.

Remeron is an antidepressant. It appears to adjust the activity of certain chemicals in the brain.

Quick Facts About Remeron


Used for the treatment of severe depression, often marked by changes in appetite and weight, constant fidgeting or a slowdown in movement, difficulty sleeping, difficulty concentrating, loss of interest in pleasurable activities, fatigue, feelings of guilt or worthlessness, slowed thinking, and suicidal thoughts.

Remeron Dosage

Take with or without food at the same time every day, usually before bedtime. Take exactly as prescribed; do not discontinue use without consulting your doctor.

  • Usual adult dose: initially — 15 milligrams once daily, before bedtime. Doctor may increase dosage up to 45 milligrams per day.
  • Usual child dose: Not generally prescribed for children.
  • Missed dose: take as soon as possible, up to 12 hours late. Past 12 hours, do not take missed dose; go back to regular schedule. Do not double doses.

Remeron Side Effects

Overdose symptoms:

drowsiness, disorientation, memory impairment, rapid heartbeat. If you suspect an overdose, immediately seek medical attention.

More common side effects: abnormal dreams and thinking, abdominal pain, agitation, anxiety, apathy, constipation, dizziness, dry mouth, flu-like symptoms, increased appetite, increased cough, increased thirst, itching, joint pain, rash, sleepiness, twitching, vomiting, weakness, weight gain.

Less common Remeron side effects: back pain, changes in menstrual periods, changes in vision or hearing, confusion, dehydration, difficulty breathing, fluid retention, forgetfulness, frequent urination, light-headedness, migraine, mood or mental changes, mouth sores, muscle pain, nausea, slow heartbeat, tremors, weight loss.

Rare side effects: changes in urinary functions, headache, hives, infection (aches or pains, chills, fever, sore throat), muscle aches, strange dreams, swelling of ankles or hands, swollen or discolored tongue.


Combining Remeron with certain medications could cause serious, life-threatening effects.

Do not combine Remeron with :

MAO (monoamine oxidase) inhibitors such as Nardil and Parnate; and allow at least 14 days between use of Remeron and any MAO inhibitor. Inform your doctor before combining Remeron with tranquilizers such as Ativan, Xanax, and Valium.

Alcohol may increase sedative effects; do not drink while taking Remeron.

Special Cautions

If pregnant or planning to become pregnant, inform your doctor immediately. Not known if Remeron appears in breast milk; could affect nursing infant

Seniors are generally prescribed initial doses in the lower ranges.

Not generally prescribed for children under 18 years.

  • If chills or fever, flu-like symptoms, mouth sores, or sore throat appear, contact your doctor immediately; this may be an emergency situation.
  • May increase cholesterol levels; inform your doctor before treatment if you have a cholesterol problem.
  • Inform your doctor before treatment if you: have blood circulation problems, heart disease, kidney disease, liver disease, seizure disorder; have had a stroke; or have a history of mania or other mood disorders, drug dependence or use, or any other physical or emotional problems.
  • Getting up slowly from a sitting or lying-down position may alleviate dizziness or light-headedness; inform your doctor if problem persists.
  • Should not take medication if allergic to it or similar medications, such as Ludiomil and Desyrel.

Note: provides accurate and independent information prescription pills, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. If you have questions about  dosage, or Remeron side effects, please contact your healthcare provider