There is diffrent dosage for diffrent diseases,Please let me know for which disease are you asking?
Is it diabeteic neuropathy or any other?
yes it is diabetic neuropathy
For diabetic neuropathy the maximum recommended dose of Lyrica is 100 mg three times a day (300 mg/day).Dosing should begin at 50 mg three times a day (150 mg/day) and may be increased to 300 mg/day within 1 week based on efficacy and tolerability.
Most common side affects are:dizziness, somnolence, dry mouth, edema, blurred vision, weight gain,difficulty with concentration and attention,dry mouth constipation,shortness of breath,pain, including back pain .