My husband was prescribed midodrine HCL 10 mg for low blood until was have his appointment with a electrophysiologist, with will happen on 6 days. This medication was prescribed by his nephrologist.. After we informed his cardiolgist of this prescription, he said, it is supposed to be taken 3 times a day and if you listen another doctor, that means that you do not trust me and from now, I will not take care of him. Now, the next appointment with the cardiologist is in 10 days. Until then, can we increase the midodrine. It is very effective bringing his b/p from 80/50 to 100/80. Mu husband has; CHFF, Atrial fibrillation, he is on peritoneal dialysis as his ejection fraction his 15. Please your opinion. I am a RN and know that it will be only an opinion not a prescription.