Not Medical Advice: Did you mean R150? The pill with imprint R150 has been identified as Ranitidine hydrochloride 150 mg.
Ranitidine is used to treat ulcers of the stomach and intestines and prevent them from coming back after they have healed. It is also used to prevent and treat heartburn and other symptoms caused by too much acid in the stomach (acid indigestion). This medication is available without a prescription.
Learn about the Ranitidine Side Effects from Drugs.com.
Stomach ulcers can affect anyone but rarely occur in children and are more common in men than women. Check out some tips on how to prevent and treat stomach ulcers at Bodyandsoul.com.au.