How long would the pseudoephedrine from an OTC cold remedy remain in the system and be detectable by a drug test?
Why would you care? It is not a banned substance anywhere on this planet.
Isn’t it banned by the IOC? Didn’t that gymnast lose her gold medal because of it! This looks like a job for JMB
It is banned by the IOC (and can turn a false positive for Amphetimines as well) and doesn’t hang around more than a couple of days.