Trulicity is a medication used to treat type 2 diabetes by lowering glucose levels in the blood. The drug is administered once a week through subcutaneous injection and is a GLP-1 agonist. It works by stimulating insulin production and slowing down stomach emptying to reduce appetite and promote weight loss. Trulicity has some potential side effects and should not be used to treat type 1 diabetes. However, it is an effective treatment option and should be discussed with a healthcare provider to determine its suitability for use.