The Clonidine Micropellet (IMAGE) West Virginia University Hospitals Caption The clonidine micropellet, shown next to a dime for size comparison, is implanted in a patient's lower back to combat sciatica pain for up to one year. Credit Photo courtesy of Sollis Corp. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.