My father 74 year of age suffered with anxiety and depression. I consulted doctor a (neurologist: he prescribed ? serlift 100 mg (1 time, zapiz 0.25 (3 time) but no improvement taking it for 12 days. Then I consulted doctor b (physiatrist: he prescribed ? serenace 0.25 (1 time, dimip 10 (1 time, trazonil 0.25 (1 time), f-thikol 0.5 (1 clonotril 0.25 (sos) time) .we see improvement from day 1 and got almost well .after 1.5 month doctor stopped serenace 0.25 and trazonil 0.25 but anxiety came back. Then I consulted doctor c (physiatrist: he prescribed - symbal 30 (1, trazonil 50 (1, etizola beta 25 (2, clonotril 0.25 (sos) and cbt (1 time) but no improvement .my father took this medicine for 15 days and he got more week. Then I went back to doctor b and he gave same medicine and after 4-5 days my father has 60% improvement. Please suggest me what to do. Doctor c says medicine of doctor b is obsolete and doctor b says medicine of doctor c is high drug. I want to know if the current treatment is fine ?and how long we should take this medicine?