A former pharmacist charged with stealing Viagra pills could serve prison time. 47-year old Clark Brown of rural Miami Oklahoma was charged back in April with taking the sex-stimulants from a Mays Drug Store, in Miami. Brown was charged with larceny and possession of a controlled substance. He has pleaded guilty. Prosecutors say Brown was caught on tape and he`s accused of taking medications and items valued at over $15,000 between the dates of November 1999 and November 2000. Brown will be back in court September 26th.