A gastro-retentive pharmaceutical dosage form of a therapeutically effective amount of at least one GABA Analog, at least one opioid, and at least one pharmaceutically acceptable excipient wherein the said dosage form is retained in the stomach for at least four hours and is suitable for formulating for once daily or twice daily administration. Further provided is a method of treating a disorder by administering to a patient in need thereof, a gastro-retentive pharmaceutical dosage form of a therapeutically effective amount of at least one GABA Analog, at least one opioid, and at least one pharmaceutically acceptable excipient wherein the said dosage form is retained in the stomach for at least four hours and is suitable for once daily or twice daily administration. The opioid is either in slow release form or in immediate release form.