Pregabel-Trio Tablet is a combination medicine used to treat neuropathic pain by controlling calcium channel activity and increasing chemical messengers in the brain. It can be taken with or without food, but it is advised to take it at the same time each day to maintain a consistent level. Common side effects include constipation, weight gain, dry mouth, dizziness, sleepiness, and weight gain. It is important to inform your doctor if you have kidney or liver disease, other medications, are pregnant, planning pregnancy, or breastfeeding.