Get emergency medical help if you have signs of an allergic reaction to amiodarone: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Amiodarone takes a long time to completely clear from your body. You may continue to have side effects from this medicine after you stop using it.
Call your doctor at once if you have any of these side effects, even if they occur up to several months after you stop using this medicine:
wheezing, cough, chest pain, cough with bloody mucus, fever;
a new or a worsening irregular heartbeat pattern (fast, slow, or pounding heartbeats);
a light-headed feeling, like you might pass out;
blurred vision, seeing halos around lights (your eyes may be more sensitive to light);
liver problems - nausea, vomiting, stomach pain (upper right side), tiredness, dark urine, jaundice (yellowing of the skin or eyes);
nerve problems - loss of coordination, muscle weakness, uncontrolled muscle movement, or a prickly feeling in your hands or lower legs;
signs of overactive thyroid - weight loss, thinning hair, feeling hot, increased sweating, tremors, feeling nervous or irritable, irregular menstrual periods, swelling in your neck (goiter); or
signs of underactive thyroid - weight gain, tiredness, depression, trouble concentrating, feeling cold.
Common amiodarone side effects may include:
nausea, vomiting, loss of appetite; or
constipation.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Amiodarone side effects (more detail)
