Roachol is a medicine that relieves gallbladder pain and gallbladder colic, helps relax the bile ducts, increases bile production, facilitates its passage through the bile ducts, improves liver function, reduces cholesterol production, and improves fat digestion. Gallstones are one of the most common diseases affecting the gallbladder. The stones can be small and do not cause any problems, or they can be large and cause blockage of the bile ducts, causing severe pain in the upper abdomen on the right side.