Does doxylamine succinate cause a dirty UA?

Doxylamine succinate, an antihistamine commonly used as a sleep aid, is not known to cause a "dirty" urine analysis (UA) in the sense of showing illicit drugs or substances. However, it may lead to false positives for certain substances, such as amphetamines, due to its chemical structure. If a urine test is conducted, it is advisable to inform the testing authority about any medications taken to avoid potential misunderstandings. Always consult a healthcare professional for specific concerns regarding medications and drug testing.