Along with its needed effects, acetaminophen/butalbital/caffeine 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 while taking acetaminophen / butalbital / caffeine:
More common
- Lightheadedness
- shortness of breath
Incidence not known
- Abdominal or stomach pain
- black, tarry stools
- bleeding gums
- blistering, peeling, or loosening of the skin
- blood in the urine or stools
- blurred vision
- change in the frequency of urination or amount of urine
- chills
- cough
- diarrhea
- difficulty with breathing
- difficulty with swallowing
- dizziness
- drowsiness
- dry mouth
- fainting
- fast, pounding, or irregular heartbeat or pulse
- flushed or dry skin
- fruit-like breath odor
- hives, itching, or skin rash
- increased hunger
- increased thirst
- increased urination
- joint or muscle pain
- loss of appetite
- nausea or vomiting
- pinpoint red spots on the skin
- puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
- red skin lesions, often with a purple center
- red, irritated eyes
- seizures
- shakiness in the legs, arms, hands, or feet
- sore throat
- sores, ulcers, or white spots in the mouth or on the lips
- sweating
- swelling of the feet or lower legs
- tightness in the chest
- trembling or shaking of the hands or feet
- troubled breathing
- unexplained weight loss
- unusual bleeding or bruising
- unusual tiredness or weakness
- weakness
Symptoms of overdose
- Confusion as to time, place, or person
- dark urine
- difficult or painful urination
- dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
- fever
- general feeling of discomfort or illness
- hallucinations
- headache
- holding false beliefs that cannot be changed by fact
- increased sweating
- irregular, fast or slow, or shallow breathing
- light-colored stools
- loss of appetite
- pale or blue lips, fingernails, or skin
- restlessness
- sudden decrease in the amount of urine
- sweating
- trouble sleeping
- unpleasant breath odor
- unusual excitement, nervousness, or restlessness
- vomiting of blood
- yellow eyes or skin
Some side effects of acetaminophen / butalbital / caffeine 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
- Relaxed and calm
- sleepiness
Incidence not known
- Anxiety
- bloated
- constipation
- continuing ringing or buzzing or other unexplained noise in the ears
- depression
- earache
- excess air or gas in the stomach or intestines
- false or unusual sense of well-being
- full feeling
- hearing loss
- heartburn
- heavy eyelids
- high energy
- hot spells
- hyperventilation
- irritability
- numbness
- pain in the leg
- passing gas
- sluggishness
- stuffy nose
- tingling sensation
What Are Side Effects Associated with Using Butalbital/Acetaminophen/Caffeine?
Common side effects of Butalbital/Acetaminophen/Caffeine include:
- drowsiness,
- dizziness,
- feeling “drunk”,
- headache,
- tiredness,
- nausea,
- vomiting,
- stomach pain, and
- constipation
Serious side effects of Butalbital/Acetaminophen/Caffeine include:
- hives,
- difficulty breathing,
- swelling of the face, lips, tongue, or throat,
- skin redness,
- rash that spreads and causes blistering and peeling,
- slow breathing with long pauses,
- blue colored lips,
- difficult to arouse,
- noisy breathing,
- sighing,
- shallow breathing,
- slow heart rate,
- weak pulse,
- extreme drowsiness,
- lightheadedness,
- chest pain,
- fast or pounding heart rate,
- shortness of breath,
- confusion,
- unusual thoughts or behavior,
- agitation,
- hallucinations,
- fever,
- sweating,
- shivering,
- fast heart rate,
- muscle stiffness,
- twitching,
- loss of coordination,
- nausea,
- vomiting,
- diarrhea,
- loss of appetite,
- dizziness,
- worsening tiredness,
- weakness,
- upper stomach pain,
- itching,
- dark urine,
- clay-colored stools, and
- yellowing of the skin or eyes (jaundice)
Rare side effects of Butalbital/Acetaminophen/Caffeine include:
- none
Seek medical care or call 911 at once if you have the following serious side effects:
- Severe headache, confusion, slurred speech, arm or leg weakness, trouble walking, loss of coordination, feeling unsteady, very stiff muscles, high fever, profuse sweating, or tremors;
- Serious eye symptoms such as sudden vision loss, blurred vision, tunnel vision, eye pain or swelling, or seeing halos around lights;
- Serious heart symptoms include fast, irregular, or pounding heartbeats; fluttering in the chest; shortness of breath; sudden dizziness, lightheartedness, or passing out.