What side effects may I notice from receiving Hysingla ER?

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
-breathing problems
-confusion
-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 adrenal insufficiency like nausea; vomiting; loss of appetite; fatigue; weakness; dizziness; low blood pressure
-signs and symptoms of low blood pressure like dizziness; feeling faint or lightheaded, falls; unusually weak or tired
-signs and symptoms of serotonin syndrome like agitation; confusion; diarrhea; fast or irregular heartbeat; muscle twitching; stiff muscles; trouble walking; increased sweating; high fever; seizures; shivering; vomiting
-trouble passing urine or change in the amount of urine

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

-constipation
-dry mouth
-nausea, vomiting
-tiredness

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