What substance other than alcohol will show up on a urine test?

Several substances can show up on a urine test other than alcohol, including illegal drugs such as marijuana, cocaine, amphetamines, and opiates. Prescription medications like benzodiazepines and certain antidepressants can also be detected. Additionally, some over-the-counter medications, like pseudoephedrine, may trigger positive results for certain drug tests. Always consult with a healthcare professional regarding specific substances and their detection in urine tests.