I have been taking Dosulepin for a number of years but for quite some time have only been taking 1 a night ie 25mg. My usual doctor has not been concerned about me continuing at this level but 2 other doctors in my practice have raised concerns about the safety of continuing to use it. I am 62 and usually in reasonable health. I feel concerned now in case this drug may have affected my heart but unsure what to do for the best. I have recently reduced the doseage by just 1 less per week. Can you advise me ?