This medication is used to treat certain mental/mood
disorders (such as depression, anxiety along with depression). Amoxapine
belongs to a class of drugs known as tricyclic antidepressants. It works by
helping to restore the balance of certain natural substances in the
brain.
This section contains uses of this drug that are not
listed in the approved professional labeling for the drug but that may be
prescribed by your health care professional. Use this drug for a condition
that is listed in this section only if it has been so prescribed by your
health care professional.
This drug may also be used for anxiety disorders (such
as panic disorder) and bipolar disorder.
Read the Medication Guide provided by your pharmacist
before you start taking amoxapine and each time you get a refill. If you
have any questions, ask your doctor or pharmacist.
Take this medication by mouth with or without food as
directed by your doctor, usually 1 to 3 times daily. To lessen side
effects, amoxapine may be started at a low dose and slowly increased as
your body gets used to it. Follow your doctor's instructions carefully. If
you are taking this medication once daily, it is usually taken at bedtime
to prevent daytime drowsiness. The dosage is based on your medical
condition, age, and response to treatment.
Use this medication regularly in order to get the most
benefit from it. To help you remember, use it at the same time(s) each day.
This medication does not work right away. It may take up to two weeks
before you experience the full benefits.
Keep taking this medication even if you feel well. Do
not suddenly stop taking this medication without consulting your doctor.
Some conditions may become worse when the drug is abruptly stopped. Your
dose may need to be gradually decreased.
Tell your doctor if your condition does not get better
or if it gets worse.
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.
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.
Drug interactions may change how your medications work
or increase your risk for serious side effects. This document does not
contain all possible drug interactions. Keep a list of all the products you
use (including prescription/nonprescription drugs and herbal products) and
share it with your doctor and pharmacist. Do not start, stop, or change the
dosage of any medicines without your doctor's approval.
Some products that may interact with this drug
include:
- certain drugs for high blood pressure (such as clonidine,
guanethidine)
- psychiatric drugs (such as antipsychotics,
antidepressants)
- thyroid supplements
Taking MAO inhibitors with this medication may cause a
serious (possibly fatal) drug interaction. Avoid taking MAO inhibitors
(isocarboxazid, linezolid, metaxalone, methylene blue, moclobemide,
phenelzine, procarbazine, rasagiline, safinamide, selegiline,
tranylcypromine) during treatment with this medication. Most MAO inhibitors
should also not be taken for two weeks before treatment with this
medication. Ask your doctor when to start or stop taking this
medication.
Tell your doctor or pharmacist if you are taking other
products that cause drowsiness such as opioid pain or cough relievers (such
as codeine, hydrocodone), alcohol, marijuana (cannabis), drugs for sleep or
anxiety (such as alprazolam, lorazepam, zolpidem), muscle relaxants (such
as carisoprodol, cyclobenzaprine), or antihistamines (such as cetirizine,
diphenhydramine).
Check the labels on all your medicines (such as allergy
or cough-and-cold products) because they may contain ingredients that cause
drowsiness. Ask your pharmacist about using those products
safely.
This medication may interfere with certain medical/lab
tests (such as brain scan for Parkinson's disease), possibly causing false
test results. Make sure lab personnel and all your doctors know you use
this drug.
If someone has overdosed and has serious symptoms such
as passing out or trouble breathing, call 911. Otherwise, call a poison
control center right away. US residents can call 1-800-222-1222. Canada
residents can call 1-844-764-7669. Overdose of this medication may be fatal
and symptoms include: seizures, delirium, and loss of consciousness
.
Do not share this medication with others.
Lab and/or medical tests may be done while you are
taking this medication. Keep all medical and lab appointments. Consult your
doctor for more details.
If you miss a dose, take it as soon as you remember. If
it is near the time of the next dose, skip the missed dose. Take your next
dose at the regular time. Do not double the dose to catch
up.
Store at room temperature away from light and moisture.
Do not store in the bathroom. Keep all medications away from children and
pets.
Do not flush medications down the toilet or pour them
into a drain unless instructed to do so. Properly discard this product when
it is expired or no longer needed. Consult your pharmacist or local waste
disposal company.