What side effects may I notice from receiving Vivitrol?

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
-dark urine
-depressed mood
-general ill feeling or flu-like symptoms
-injection site problems: blisters, dark scab, hard area, lumps, intense pain, open wound, or large area of swelling
-light-colored stools
-right upper belly pain
-suicidal thoughts or other mood changes
-unusual bleeding or bruising
-unusually weak or tired
-yellowing of the eyes or skin
-vomiting

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
-dizziness
-headache
-irritation, sting, or redness where injected right after injection
-loss of appetite
-nausea
-tiredness

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