Ind. Code § 9-24-11-7

Sec. 7. The bureau, when issuing a permit or driver's license, may, whenever good cause appears, impose restrictions suitable to the licensee's or permittee's driving ability with respect to the type of or special mechanical control devices required on a motor vehicle that the licensee operates. The bureau may impose other restrictions applicable to the licensee or permittee that the bureau determines are appropriate to assure the safe operation of a motor vehicle by the licensee or permittee, including a requirement to take prescribed medication. When the restrictions are imposed, the bureau may issue either a special restricted license or shall set forth the restrictions upon the usual license form.