Medicine Name: Pyrope NTM Tablet SR. Composition: Pregabalin (75mg) + Nortriptyline (10mg) + Methylcobalamin (1500mcg). Side Effects: Constipation Weight gain Orthostatic hypotension sudden lowering of blood pressure on standing Increased heart rate Dizziness Sleepiness Tiredness Blurred vision Dryness in mouth Difficulty in urination Uncoordinated body movements.