Fioricet Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

More common

  1. Lightheadedness
  2. shortness of breath

Incidence not known

  1. Abdominal or stomach pain
  2. black, tarry stools
  3. bleeding gums
  4. blistering, peeling, or loosening of the skin
  5. blood in the urine or stools
  6. blurred vision
  7. change in the frequency of urination or amount of urine
  8. chills
  9. cough
  10. diarrhea
  11. difficulty with breathing
  12. difficulty with swallowing
  13. dizziness
  14. drowsiness
  15. dry mouth
  16. fainting
  17. fast, pounding, or irregular heartbeat or pulse
  18. flushed or dry skin
  19. fruit-like breath odor
  20. hives, itching, or skin rash
  21. increased hunger
  22. increased thirst
  23. increased urination
  24. joint or muscle pain
  25. loss of appetite
  26. nausea or vomiting
  27. pinpoint red spots on the skin
  28. puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  29. red skin lesions, often with a purple center
  30. red, irritated eyes
  31. seizures
  32. shakiness in the legs, arms, hands, or feet
  33. sore throat
  34. sores, ulcers, or white spots in the mouth or on the lips
  35. sweating
  36. swelling of the feet or lower legs
  37. tightness in the chest
  38. trembling or shaking of the hands or feet
  39. troubled breathing
  40. unexplained weight loss
  41. unusual bleeding or bruising
  42. unusual tiredness or weakness
  43. weakness

Get emergency help immediately if any of the following symptoms of overdose occur:

Symptoms of overdose

  1. Confusion as to time, place, or person
  2. dark urine
  3. difficult or painful urination
  4. dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  5. fever
  6. general feeling of discomfort or illness
  7. hallucinations
  8. headache
  9. holding false beliefs that cannot be changed by fact
  10. increased sweating
  11. irregular, fast or slow, or shallow breathing
  12. light-colored stools
  13. loss of appetite
  14. pale or blue lips, fingernails, or skin
  15. restlessness
  16. sudden decrease in the amount of urine
  17. sweating
  18. trouble sleeping
  19. unpleasant breath odor
  20. unusual excitement, nervousness, or restlessness
  21. vomiting of blood
  22. yellow eyes or skin

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

  1. Relaxed and calm
  2. sleepiness

Incidence not known

  1. Anxiety
  2. bloated
  3. constipation
  4. continuing ringing or buzzing or other unexplained noise in the ears
  5. depression
  6. earache
  7. excess air or gas in the stomach or intestines
  8. false or unusual sense of well-being
  9. full feeling
  10. hearing loss
  11. heartburn
  12. heavy eyelids
  13. high energy
  14. hot spells
  15. hyperventilation
  16. irritability
  17. numbness
  18. pain in the leg
  19. passing gas
  20. sluggishness
  21. stuffy nose
  22. tingling sensation

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.