Butabarbital Side Effects
Some side effects of butabarbital may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.
For the Consumer
Applies to butabarbital: elixir, tablets
Check with your doctor if any of these most COMMON side effects persist or become bothersome:
Seek medical attention right away if any of these SEVERE side effects occur while taking butabarbital:
Clumsiness; dizziness; excessive daytime drowsiness; lightheadedness.
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue; unusual hoarseness); abnormal thoughts or behavior; confusion; fainting; fever; hallucinations; mental or mood changes; nausea or vomiting; new or worsening trouble sleeping; severe dizziness; shortness of breath; swelling or tightness of the throat; very slow breathing.
For Healthcare Professionals
Applies to butabarbital: oral elixir, oral tablet
Nervous system side effects have included somnolence, headache, confusion, hyperkinesias, ataxia, and dizziness.
Cardiovascular side effects have included bradycardia, hypotension, and syncope.
Gastrointestinal side effects have included nausea, vomiting, and constipation.
Hypersensitivity reactions have included angioedema, skin rash, and exfoliative dermatitis.
Oncologic side effects have included a possible increased frequency of malignancy (particularly liver cancer and brain tumors) following use of phenobarbital and other barbiturates.
Other side effects have included physical and psychological dependence. Withdrawal symptoms have been reported when butabarbital therapy has been discontinued suddenly.
Psychiatric side effects have included agitation, nightmares, nervousness, psychiatric disturbance, hallucinations, insomnia, anxiety, and abnormal thinking.
Respiratory side effects have included hypoventilation and apnea.
More butabarbital resources
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