Classic NES Series: Dr. Mario

Pills:
The viruses are Red, Yellow, and Blue and are placed in random order in the bottle, when you start.

Blue/Blue: Eliminates Blue Viruses
Red/Red: Eliminate Red Viruses.
Yellow/Yellow: Eliminate Yellow Viruses.
Red /Blue: Eliminate Red, Blue, or both.
Red/Yellow: Eliminate Red, Yellow ,or both.
Blue/Yellow: Eliminate Blue, Yellow or both.