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You may have taken too much phenobarbital if you have any of the following symptoms:
- dizziness or fainting
- weak pulse
- slurred speech
- blisters
- irregular heartbeat
- confusion
- headaches
Call your doctor immediately if you have any of these symptoms.
If you become unconscious, or have difficulty breathing or swallowing, a friend or family member needs to call 911.
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.