Secobarbital Side Effects

Brand Names: Seconal Sodium

Please note - some side effects for Secobarbital may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

Side Effects of Secobarbital - for the Consumer

Secobarbital

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Secobarbital:

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); confusion; difficulty sleeping; fainting; fever; hallucinations; severe dizziness; trouble sleeping; unusual behavior; very slow breathing.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

Side Effects by Body System - for Healthcare Professionals

Nervous system

Nervous system side effects have included somnolence, headache, confusion, hyperkinesias, ataxia, and dizziness.

Cardiovascular

Cardiovascular side effects have included bradycardia, hypotension, and syncope.

Gastrointestinal

Gastrointestinal side effects have included nausea, vomiting, and constipation.

Hypersensitivity

Hypersensitivity reactions have included angioedema, skin rash, and exfoliative dermatitis.

Oncologic

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

Other side effects have included physical and psychological dependence. Withdrawal symptoms have been reported when secobarbital therapy has been discontinued suddenly.

Psychiatric

Psychiatric side effects have included agitation, nightmares, nervousness, psychiatric disturbance, hallucinations, insomnia, anxiety, and abnormal thinking.

Respiratory

Respiratory side effects have included hypoventilation and apnea.

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