Mr. Roy Sir,
I understand that you are not an instructor rather executor. However, as you mentioned-
“To understand the character and action of sleeping pill/tablet one need not to take up a laudible task of studying M.B.B.S.”
– people of India need not to be a lawyer (As you are not MBBS). Just need the common sense and most of the lawyers (executors) are misleading them.
However, Common sense which is very common is uncommon to Indian people.