Are there prescription drug that cause a hair drug test to show positive for cocaine?

In trouble, are you?

Are there prescription drug that cause a hair drug test to show positive for cocaine?

possibly, cocaine is a plant alkaloid and lots of alkaloids are used in commercial painkillers, and it would depend on the sensitivity of the test as to whether it determined between them or not

Are there prescription drug that cause a hair drug test to show positive for cocaine?

I am sure there are.

Are there prescription drug that cause a hair drug test to show positive for cocaine?

When checking for cocaine the drug test screens for metabolites which can be picked up from any amphetamine. There are many prescription amphetamines. Many diet pills, medications for ADD, ADHD, and energy medications for cancer patients as well. some are: Provigil, Dexedrine, phentermine, adderall, and Ritalin.