Blue flower pill is blue snowflake, blue snowflake is blue flower pill, there is no difference between them. Blue flower pill is the standard Chinese name of blue snowflake. Blue snowflake is its common name or trade name. If you look up materials or books, the frequency of blue flower pill may be higher; but if you communicate with flower market or flower friends, blue snowflake is a common name.
For this point, you can refer to the rose that you see in the florist's shop, which is actually a cut rose. This is a convention of commodity sales. You are used to calling it this way, but you don't need to pay much attention to the specific differences of names. In fact, blue flower Dan and blue snowflake are two names of a kind of flower.
