My wife pulse rate goes 115-120. She is diabetic patient. She is taking telma 40, gluformin 500, volibo 0.3 mg, insulin 30/70 mixstard 20 units in the morning. Night has been stopped by the endocrinologist. But her bp remains 130/95 or sometimes it goes 99/100 but pulse rate is very high. Is metxl tablet and upto how many mg 25 mg or plain will be suitable in her case to control the heartbeat.