What side effects may I notice from receiving Tegsedi?

Side effects that you should report to your doctor or health care professional as soon as possible:

-allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
-signs and symptoms of a dangerous change in heartbeat or heart rhythm like chest pain; dizziness; fast or irregular heartbeat; palpitations; feeling faint or lightheaded, falls; breathing problems
-signs and symptoms of a stroke like changes in vision; confusion; trouble speaking or understanding; severe headaches; sudden numbness or weakness of the face, arm or leg; trouble walking; dizziness; loss of balance or coordination
-signs and symptoms of bleeding such as bloody or black, tarry stools; red or dark brown urine; spitting up blood or brown material that looks like coffee grounds; red spots on the skin; unusual bruising or bleeding from the eyes, gums, or nose
-signs and symptoms of infection like fever or chills; cough; sore throat; pain or trouble passing urine
-signs and symptoms of kidney injury like trouble passing urine or change in the amount of urine
-signs and symptoms of liver injury like dark yellow or brown urine; general ill feeling or flu-like symptoms; light-colored stools; loss of appetite; nausea; right upper belly pain; unusually weak or tired; yellowing of the eyes or skin

Side effects that usually do not require medical attention (report these to your doctor or health care professional if they continue or are bothersome):

-headache
-joint pain
-loss of appetite
-muscle pain
-nausea, vomiting
-pain, redness, or irritation at site where injected
-tiredness

This list may not describe all possible side effects for Tegsedi. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.