What side effects may I notice from receiving Butalbital, Aspirin, Caffeine, Codeine Phosphate?

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

-allergic reactions (skin rash, itching or hives; swelling of the face, lips, or tongue)
-anxious
-bleeding (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
-confusion
-decreased hearing, ringing of the ears
-fast, irregular heartbeat
-kidney injury (trouble passing urine or change in the amount of urine)
-low adrenal gland function (nausea; vomiting; loss of appetite; unusually weak or tired; dizziness; low blood pressure)
-low blood pressure (dizziness; feeling faint or lightheaded, falls; unusually weak or tired)
-rash, fever, and swollen lymph nodes
-redness, blistering, peeling or loosening of the skin, including inside the mouth
-serotonin syndrome (irritable; confusion; diarrhea; fast or irregular heartbeat; muscle twitching; stiff muscles; trouble walking; sweating; high fever; seizures; chills; vomiting)
-trouble breathing
Side effects that usually do not require medical attention (report to your doctor or health care provider if they continue or are bothersome):

-constipation
-dry mouth
-nausea, vomiting
-stomach pain
-tiredness

This list may not describe all possible side effects for Butalbital, Aspirin, Caffeine, Codeine Phosphate. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.