Abstract: An antimicrobial lubricant combines an antimicrobial agent, preferably silver based, with a silicone lubricant. This is achieved by first formulating a lubricant solution that has a non-volatile silicone lubricant and a volatile solvent carrier. An antimicrobial agent is added to the lubricant solution. The solution is then subjected to ultrasonic energy so that the antimicrobial agent is uniformly mixed with the lubricant in the solution. The solution containing the antimicrobial lubricant may be sprayed onto a medical device, for example the outer surface of the catheter of a peripheral IV catheter. After the solvent flashes off, a coat of uniform antimicrobial lubricant is formed on the catheter surface. The antimicrobial lubricant coating facilitates the insertion of the catheter to a patient, and at the same time prevents the growth of microorganisms from the device and infection to the patient.