Amoxapine
Pronounced
"a-MOX-a-peen"
Side Effects
See also the Warning section.
Drowsiness, dizziness, difficulty urinating, dry mouth, constipation, headache, weakness, blurred vision, or changes in appetite/weight may occur as your body gets used to the medication. If any of these effects last or get worse, tell your doctor or pharmacist promptly.
To relieve dry mouth, suck on (sugarless) hard candy or ice chips, chew (sugarless) gum, drink water or use a saliva substitute. If any of these effects last or get worse, notify your doctor or pharmacist promptly.
To prevent constipation, eat dietary fiber, drink enough water, and exercise. You may also need to take a laxative. Ask your pharmacist which type of laxative is right for you.
To reduce the risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.
Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if you have any serious side effects, including: fainting, mental/mood changes (such as confusion, depression, hallucinations, nervousness, restlessness), numbness/tingling of the hands/feet, ringing in the ears, shakiness (tremors), stomach/abdominal pain, severe vomiting/constipation.
Get medical help right away if you have any very serious side effects, including: chest/jaw/left arm pain, slow/fast/irregular heartbeat, pain/redness/swelling of arms/legs, seizures, severe headache, weakness on one side of the body, eye pain/swelling/redness, widened pupils, vision changes (such as seeing rainbows around lights at night), trouble speaking.
In rare instances, this medication may increase your level of a certain natural chemical made by the body (prolactin). For females, this increase in prolactin may result in unwanted breast milk, missing/stopped periods, or difficulty becoming pregnant. For males, it may result in decreased sexual ability, inability to produce sperm, or enlarged breasts. If you develop any of these symptoms, tell your doctor right away.
This drug may rarely cause a condition known as tardive dyskinesia. In some cases, this condition may be permanent. Tell your doctor right away if you develop any unusual/uncontrolled movements (especially of the face, mouth, tongue, arms or legs).
Amoxapine may rarely cause a serious condition called neuroleptic malignant syndrome. Get medical help right away if you develop the following: fever, muscle stiffness, increased sweating, fast/irregular heartbeat, severe confusion.
This medication may rarely cause serious blood problems (such as agranulocytosis, thrombocytopenia) or liver problems. Get medical help right away if you notice any of the following very serious side effects: easy bleeding/bruising, signs of infection (such as sore throat that doesn't go away, fever), severe stomach/abdominal pain, dark urine, yellowing of the eyes/skin.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Precautions
See also the Warning section.
Before taking amoxapine, tell your doctor or pharmacist if you are allergic to it; or to other tricyclic antidepressants (such as amitriptyline); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: blood problems (such as agranulocytosis, thrombocytopenia), breathing problems (such as asthma, COPD), personal or family history of glaucoma (angle-closure type), intestinal problems (such as chronic constipation, ileus), heart problems (such as recent heart attack, arrhythmias, coronary artery disease, heart failure), kidney problems, liver problems, other mental/mood conditions (such as bipolar disorder, psychosis), family history of mental/mood conditions (such as bipolar disorder) or suicide, history of neuroleptic malignant syndrome, movement disorders (such as Parkinson's disease, tardive dyskinesia), overactive thyroid (hyperthyroidism), problems urinating (urinary retention, enlarged prostate), seizures, conditions that may increase your risk of seizures (such as electroshock therapy, stroke, alcohol withdrawal).
This drug may make you dizzy or drowsy or blur your vision. Alcohol or marijuana (cannabis) can make you more dizzy or drowsy. Do not drive, use machinery, or do anything that needs alertness or clear vision until you can do it safely. Limit alcoholic beverages. Talk to your doctor if you are using marijuana (cannabis).
Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
This medication may make you more sensitive to the sun. Limit your time in the sun. Avoid tanning booths and sunlamps. Use sunscreen and wear protective clothing when outdoors. Tell your doctor right away if you get sunburned or have skin blisters/redness.
Older adults may be more sensitive to the side effects of this drug, especially drowsiness, dizziness, confusion, constipation, trouble urinating, and involuntary movements (tardive dyskinesia). Drowsiness, dizziness, and confusion can increase the risk of falling.
During pregnancy, this medication should be used only when clearly needed. Infants born to mothers who have taken similar medications during pregnancy may have problems such as very deep sleep, trouble urinating, shaking (tremors), and seizures. Discuss the risks and benefits with your doctor.
Since untreated mental/mood problems (such as depression, panic disorders, bipolar disorder) can be a serious condition, do not stop taking this medication unless directed by your doctor. If you are planning pregnancy, become pregnant, or think you may be pregnant, immediately discuss with your doctor the benefits and risks of using this medication during pregnancy.
This medication passes into breast milk and may have undesirable effects on a nursing infant. Consult your doctor before breastfeeding.
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