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 after you stop using this medicine. It could take up to several months for the medicine to completely clear from your body.
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 amiodarone:
wheezing, cough, chest pain, coughing up blood, breathing problems that get worse;
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, vision loss, headache or pain behind your eyes, sometimes with vomiting;
liver problems – nausea, upper stomach pain, itching, tired feeling, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);
nerve problems – loss of coordination, muscle weakness, uncontrolled muscle movement, or numbness and tingling in your hands or lower legs;
signs of overactive thyroid – weight loss, thinning hair, feeling too hot or too cold, increased sweating, irregular menstrual periods, swelling in your neck (goiter); or
signs of underactive thyroid – extreme tired feeling, dry skin, joint pain or stiffness, muscle pain or weakness, hoarse voice, feeling more sensitive to cold temperatures, weight gain.
