Please choose the correct ending to complete the given sentence: Health: [header] How to dissolve gallstones [title] Consider oral dissolution therapy. [step] Your doctor may prescribe a course of ursodiol to dissolve your gallstones without surgery. These treatments are essentially bile acids in pill form.

Ending1: Ursodiol, in particular, is a popular treatment because it is one of the safest common drugs available. [substeps] Oral dissolution therapy is most likely to be successful in treating small stones (less than 1.5 centimeters in diameter) with high cholesterol content. Ending2: [substeps] Optionally, your doctor may administer another course of pills to dissolve your gallstones. [title] Apply falafel or relenium for oral use. Ending3: They usually involves dissolving one set of gallstones in 1 liter (3 gal) of water. Your doctor may prescribe : [substeps] Intravenous (or uropausal) water with benzoyl peroxide. Ending4: [substeps] The medication is injected into the gallstones and completely dissolved within three to five days. For opioids, these forms of dissolution may be prescribed.

Answer format: ending1/ending2/ending3/ending4