How will I know if I have taken too much phenobarbital?

Stacy Wiegman, PharmD

Pharmacy

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.