Read the side effects of Phenobarbital as described in the medical literature. In case of any doubt consult your doctor or pharmacist.
Central Nervous system
Agitation, confusion, incoordination, depression, abnormal dream, nervousness, mental disturbance, hallucinations, sleeplessness, anxiety, dizziness and thinking abnormality.
Difficulty in breathing.
Slow heart rate, low blood pressure and fainting.
Nausea, vomiting and constipation.
Headache, injection site reactions, hypersensitivity reactions such as shock, skin rashes; fever, liver damage and anemia.
Other Precautions :
* Avoid excess dosage.