If you will be taking probenecid for more than a few weeks, your doctor should check your progress at regular visits.
Before you have any medical tests, tell the person in charge that you are taking this medicine. The results of some tests may be affected by probenecid.
For diabetic patients:
Probenecid may cause false test results with copper sulfate urine sugar tests (Clinitest®), but not with glucose enzymatic urine sugar tests (Clinistix®). If you have any questions about this, check with your health care professional.
For patients taking probenecid for gout or to help remove uric acid from the body:
Taking aspirin or other salicylates may lessen the effects of probenecid. This will depend on the dose of aspirin or other salicylate that you take, and on how often you take it. Also, drinking too much alcohol may increase the amount of uric acid in the blood and lessen the effects of this medicine. Therefore, do not take aspirin or other salicylates or drink alcoholic beverages while taking this medicine, unless you have first checked with your doctor.