Stonil Oral Solution is a combination medicine that is used in the treatment of kidney stones. It prevents further formation of kidney stones by raising the pH of urine and prevents the formation, growth, and aggregation of crystals in the kidneys. Stonil Oral Solution should be used in the dose and duration as advised by the doctor. Check the label before use. Do not take this medicine more than the recommended dose. It is better to take this medicine at a fixed time. Inform your doctor if you are taking any medicine or have any known allergy to this medicine. The common side effects of this medicine include nausea, vomiting, diarrhea, and stomach pain. Usually, these symptoms are well tolerated and are for a short duration. However, if these symptoms persist for a longer duration, please consult your doctor. Inform your doctor if you are pregnant or breastfeeding or suffering from any other disease.