This medication is used to relieve itching from certain
skin conditions (such as atopic dermatitis, eczema, neurodermatitis). It
should be used only for a short time (no more than 8 days). Doxepin is a
tricyclic antidepressant. It is not known how this medication decreases
itching. Some medication is absorbed into the body when the cream is
applied. This medication may work by blocking a certain natural substance
(histamine) that your body makes during an allergic reaction. The decrease
in itching may be a result of drowsiness or some other effect in the brain
that causes you not to notice or be bothered by the
itching.
Before applying the medication, clean the affected area
with mild soap and water, rinse well, and pat dry. Gently rub a small
amount of the medication into the affected area in a thin layer as directed
by your doctor, usually 4 times a day. Wait at least 3 to 4 hours between
applications. How often the medication is applied and for how long depends
on your condition and response to treatment. Usually, this medication is
for short-term use only (up to 8 days).
Wash hands immediately after use unless the area being
treated includes the hands. This medication is for use on the skin only.
Avoid getting the product in your eyes, nose, ears, mouth, or vaginal/anal
area. If the medication gets in these areas, rinse immediately with clean
water.
Do not cover the area with plastic or waterproof
bandages. Covering the treated area may increase the absorption of the
medication through the skin and increase the risk of side
effects.
Do not use more of this product, use it more often, or
keep using it longer than prescribed by your doctor. Your condition will
not improve faster and the risk for side effects will increase. Side
effects may increase when you use the cream on a larger area of skin (such
as more than 10 percent of your body surface). Tell your doctor if you have
severe drowsiness while using this product. It may be a sign that you are
absorbing too much of the medication. Your doctor may tell you to decrease
how often you apply the medication, the amount of medication used, or how
much skin to spread the medication over. Follow your doctor's directions
carefully.
Tell your doctor if your condition does not get better
or if it gets worse.
Burning/stinging at the application site, drowsiness,
dizziness, dry mouth, blurred vision, or changes in taste may occur. If any
of these effects last or get worse, tell your doctor or pharmacist
promptly.
To reduce the risk of dizziness and lightheadedness, get
up slowly when rising from a sitting or lying position.
To relieve dry mouth, suck on (sugarless) hard candy or
ice chips, chew (sugarless) gum, drink water, or use a saliva
substitute.
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:
- heartburn that doesn't go away
- mental/mood changes (such as agitation, confusion,
depression)
- trouble urinating
- swelling of the hands/feet
Get medical help right away if you have any very serious
side effects, including:
- fast/irregular heartbeat
- vision changes
- fainting
- seizures
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.
Before using doxepin, 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:
- problems urinating (such as due to enlarged prostate)
- breathing problems (such as bronchitis, emphysema)
- glaucoma
- heart problems (such as irregular heartbeat)
- kidney problems
- liver problems
- overactive thyroid (hyperthyroidism)
- personal or family history of mental/mood conditions (such as
bipolar disorder, psychosis, suicide)
- seizures
- conditions that may increase your risk of seizures (such as
other brain disease, alcohol withdrawal)
Doxepin may cause a condition that affects the heart
rhythm (QT prolongation). QT prolongation can rarely cause serious (rarely
fatal) fast/irregular heartbeat and other symptoms (such as severe
dizziness, fainting) that need medical attention right
away.
The risk of QT prolongation may be increased if you have
certain medical conditions or are taking other drugs that may cause QT
prolongation. Before using doxepin, tell your doctor or pharmacist of all
the drugs you take and if you have any of the following
conditions:
- certain heart problems (heart failure, slow heartbeat, QT
prolongation in the EKG)
- family history of certain heart problems (QT prolongation in
the EKG, sudden cardiac death)
Low levels of potassium or magnesium in the blood may
also increase your risk of QT prolongation. This risk may increase if you
use certain drugs (such as diuretics/"water pills") or if you have
conditions such as severe sweating, diarrhea, or vomiting. Talk to your
doctor about using doxepin safely.
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).
If you have diabetes, this drug may affect your blood
sugar. Check your blood sugar regularly as directed and share the results
with your doctor. Tell your doctor right away if you have symptoms of high
blood sugar such as increased thirst/urination or signs of low blood sugar
such as sudden sweating, shaking, fast heartbeat, hunger, blurred vision,
dizziness, or tingling hands/feet. Your doctor may need to adjust your
diabetes medication, exercise program, or diet.
Older adults may be more sensitive to the side effects
of this drug, especially dizziness, drowsiness, confusion, difficulty
urinating, and QT prolongation (see above).
During pregnancy, this medication should be used only
when clearly needed. Discuss the risks and benefits with your
doctor.
This medication passes into breast milk and could have
undesirable effects on a nursing infant. Breastfeeding is not recommended
while using this medication. 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 (such as 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
are:
- certain drugs for high blood pressure (such as clonidine,
guanadrel, guanethidine)
- thyroid medication
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 and after treatment with this
medication. Ask your doctor when to start or stop taking this
medication.
Other medications can affect the removal of doxepin from
your body, which may affect how doxepin works. Examples include cimetidine,
St. John's Wort, drugs to treat irregular heart rate (such as propafenone,
flecainide), antidepressants (such as SSRIs including paroxetine,
fluoxetine, fluvoxamine), drugs used to treat seizures (such as
phenobarbital, phenytoin), among others.
Many drugs besides doxepin may affect the heart rhythm
(QT prolongation), including amiodarone, dofetilide, halofantrine,
pimozide, quinidine, procainamide, sotalol, macrolide antibiotics (such as
erythromycin), sparfloxacin, among others. Before using doxepin, report all
medications you are currently using to your doctor or
pharmacist.
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 medicine may be harmful if swallowed. 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. Symptoms of overdose or swallowing may include: confusion,
hallucinations, big/wide pupils, fast/irregular heartbeat, severe
dizziness, fainting, seizures, loss of consciousness.
Do not share this medication with others.
Use this medication only for the condition for which it
was prescribed. Tell all your doctors you use this
medication.
If you miss a dose, apply it as soon as you remember. If
it is near the time of the next dose, skip the missed dose. Use your next
dose at the regular time. Do not apply more to catch up.
Store at room temperature. 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.