Fioricet Side Effects

Stomach Upset

You can experience symptoms of stomach upset as a side effect of Fioricet treatment. These symptoms can include nausea, vomiting and abdominal pain. Certain patients also develop heartburn, gas or constipation, explains Drugs.com, a peer-reviewed drug information website for consumers. Stomach upset symptoms can be uncomfortable but may be limited by eating a small snack or meal before taking Fioricet.


Drowsiness

Fioricet contains a sedative, which can cause drowsiness in certain patients. After taking a dose of this medication, you can develop an intoxicated feeling, characterized by sensations of dizziness, drowsiness or confusion, explains PDR Health, a medical information website established by the publishers of the Physicians' Desktop Reference. These sensations can arise shortly after taking Fioricet and may persist for several hours. Due to these potential side effects, patients receiving treatment with this medication should use caution while driving or participating in potentially hazardous activities.


Difficulty Breathing

While taking Fioricet, you can develop breathing difficulties as a side effect of treatment. Shortness of breath can occur, which may contribute to sensations of lightheadedness, dizziness or fainting in certain patients. These symptoms may diminish with recurrent use of Fioricet. Breathing difficulties that occur in conjunction with seizures can indicate a severe reaction to this medication and require immediate medical intervention.


Fever or Headache

Infrequently, fever can arise in patients taking Fioricet, explains Drugs.com. If you develop a fever while using this medication, you may also experience increased sweating, chills, headache, weakness or fatigue.


Mood Changes

Certain patients--especially older adults--can experience mood changes as a side effect of Fioricet treatment. These mood changes may include confusion, excitement or depression, explains PDR Health. If these side effects worsen with continued use of Fioricet, talk with your doctor about adjusting your dose.