Possible side effects from using doxepin may include:

rapid heart rate
blurred vision
urinary retention (difficulty urinating)
dry mouth
constipation
weight gain or loss

Tell your doctor if any of these symptoms are severe or do not go away:

drowsiness or dizziness
dry mouth and eyes
constipation
mild tremor
sweating
mild agitation, weakness, or headache
ringing in the ears
nausea
loss of weight or appetite

If you experience any of the following symptoms, call your doctor immediately:

an allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, face, or tongue; or hives)
seizures
a fast or irregular heartbeat
a heart attack
high blood pressure (blurred vision, severe headache)
difficulty urinating
fever with increased sweating, muscle stiffness, or severe muscle weakness


Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

 

FDA Information

Why is this medication prescribed?

Other uses for this medicine

Dosage and using this medicine

What special precautions should I follow?

What should I do if I forget a dose?

What storage conditions are needed for this medicine?

In case of an emergency/overdose