About the Drug

Asendin (Amoxapine) is used to treat depression and bipolar disorder. It works by increasing brain chemicals that help maintain mental balance.

Use of Information is providing this information solely & freely for educational purposes. Always seek professional consult with your healthcare provider if you have any questions or concerns. This information can be used as an educational guide, however not every drug interaction or side effect may be listed.

Proper Usage

Asendin comes in tablet form and is taken once or more per day. Usual dosage is 200-300 mg per day. Asendin can cause drowsiness so if taken once per day it should be taken at bedtime. Try to take this medication at the same time every day for the best results. It can take several weeks to get the full benefit of this medication. Do not stop taking Asendin without consulting your doctor.

What If I Missed a Dose?

In the case that you miss taking your medicine, it is recommended that you take it when you remember. It is NOT advised to “double dose” (taking both your missed dose and your next one). What’s most important is you get back to your medication regime and avoid missing doses without professional consult.

How Can I Store this Medicine?

This medication should be stored at room temperature away from light, heat and moisture.

Possible Side Effects

The side effects associated with Asendin should lessen as your body adjusts to the medication. Inform your doctor if they persist or get worse.

  • nausea
  • drowsiness
  • weakness or tiredness
  • nightmares
  • dry mouth
  • sensitivity to sunlight
  • changes in appetite or weight
  • constipation
  • difficulty urinating
  • frequent urination
  • blurred vision
  • excessive sweating

The following symptoms should be addressed immediately by calling your physician.

  • muscle stiffness
  • confusion
  • fast or irregular heartbeat
  • slow or difficult speech
  • shuffling walk
  • uncontrollable body movements
  • fever
  • rash


Tell your doctor if you have any of the following disorders. Taking Asendin can increase the symptoms associated with these disorders.

  • asthma/COPD
  • glaucoma
  • constipation
  • heart disease/arrhythmias
  • parkinsons disease/tardive dyskenisia
  • urinary retention/enlarged prostate
  • seizures

Took an Overdose?

If you or someone you know took an overdose of this medication, then you need to IMMEDIATELY seek medical attention.

Hotline: U.S. National Poison Control 1800-222-1222

Other Drug Interactions

Asendin can react with other medications so always tell your doctor about any medications you are taking. Severe reactions can occur with the following medications. This list is not all inclusive.

  • Arbutamine/sibutramine
  • MAO inhibitors
  • Atropine
  • Clonidine/guanethidine/reserpine
  • Phenylephrine
  • Lithium/antipsychotics/antidepressants
  • Epinephrine/amphetamine