Abstract: The invention described herein relates to a prodrug that is converted into a dopamine agonist. The dopamine prodrug may be combined with one or more dopamine antagonists, dopamine receptor inhibitors, or vesicular monoamine transport inhibitors. A prodrug is a biologically inactive compound that can be metabolized by the body into its active form. For example, a prodrug placed on the ocular surface can undergo hydrolysis during penetration of the ocular surface, resulting in a biologically active drug. A prodrug allows for use of a lower concentration of the drug and protects against undesirable side effects. A prodrug can also help augment drug uptake into the target tissue.