CLICK HERE TO BUY Gabapentin Gabapentin 300 mg is a drug that helps you to relieve chronic pain. This drug contains Gabapentin/paracetamol is the combination of the pain medications Gabapentin and paracetamol. It is used to treat moderate to severe pain. It is taken by mouth. Recreational use is common in the United States. Gabapentin increases chemicals in your brain that make you feel restless from pain symptoms. Gabapentin 300 mg/paracetamol comes in oral solution and tablet formulations; however strength of each component may vary.