What is mirtazapine?
Mirtazapine is an antidepressant. Mirtazapine affects chemicals in the brain that may become unbalanced and cause depression.
Mirtazapine is used to treat major depressive disorder.
Mirtazapine may also be used for purposes other than those listed in this medication guide.
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Precautions
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Instructions
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Side Effects
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Interactions
Precautions
You should not take this medication if you are allergic to mirtazapine.
You may have thoughts about suicide while taking an antidepressant, especially if you are younger than 24 years old. Tell your doctor if you have worsening depression or suicidal thoughts during the first several weeks of treatment, or whenever your dose is changed.
Your family or other caregivers should also be alert to changes in your mood or symptoms. Your doctor will need to check you at regular visits for at least the first 12 weeks of treatment.
Do not use mirtazapine if you have used an MAO inhibitor such as isocarboxazid (Marplan), phenelzine (Nardil), rasagiline (Azilect), selegiline (Eldepryl, Emsam), or tranylcypromine (Parnate) within the past 14 days. Serious, life-threatening side effects can occur if you take mirtazapine before the MAO inhibitor has cleared from your body.
Before taking mirtazapine, tell your doctor if you are allergic to any drugs, or if you have:
- liver or kidney disease;
- bipolar disorder (manic depression);
- seizures or epilepsy;
- heart disease, including angina (chest pain);
- a history of heart attack or stroke; or
- a history of drug abuse or suicidal thoughts.
If you have any of these conditions, you may not be able to use mirtazapine, or you may need a dosage adjustment or special tests during treatment.
Mirtazapine is in the FDA pregnancy category C. This means that it is not known whether mirtazapine will harm an unborn baby. Do not take mirtazapine without first talking to your doctor if you are pregnant or could become pregnant during treatment.
It is not known whether mirtazapine passes into breast milk. Do not take mirtazapine without first talking to your doctor if you are breast-feeding a baby.
Older adults may be more sensitive to the side effects of this medication.
The orally disintegrating tablet may contain phenylalanine. Talk to your doctor before using this form of mirtazapine if you have phenylketonuria (PKU).
Avoid drinking alcohol. It can increase some of the side effects of mirtazapine.
Mirtazapine can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.
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Instructions
Seek emergency medical attention if you think you have used too much of this medicine.
Overdose symptoms may include confusion, memory problems, drowsiness, and fast heart rate.
Take the missed dose as soon as you remember. If it is almost time for your next dose, wait until then to take the medicine and skip the missed dose. Do not take extra medicine to make up the missed dose.
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Side Effects
Get emergency medical help if you have any of these signs of an allergic reaction: skin rash or hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have any new or worsening symptoms such as: mood or behavior changes, anxiety, panic attacks, trouble sleeping, or if you feel impulsive, irritable, agitated, hostile, aggressive, restless, hyperactive (mentally or physically), more depressed, or have thoughts about suicide or hurting yourself.
Call your doctor at once if you have any of these serious side effects:
- fever, chills, body aches, flu symptoms;
- white patches or sores inside your mouth or on your lips; or
- feeling like you might pass out.
Less serious side effects include:
- drowsiness, dizziness, weakness;
- nausea, stomach pain;
- constipation;
- increased appetite, weight gain;
- dry mouth; or
- thirst.
This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.
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Interactions
Cold or allergy medicine, narcotic pain medicine, sleeping pills, muscle relaxers, and medicine for seizures, depression or anxiety can add to sleepiness caused by mirtazapine. Tell your doctor if you need to use any of these other medicines while you are taking mirtazapine.
There may be other drugs that can interact with mirtazapine. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.
Other Names
Remeron, Remeron SolTab, and mirtazapine
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Disclaimer
Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.
Copyright 1996-2004 Cerner Multum, Inc. Version 2.05. Revision date 8/23/04
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