Benzedrex® is an over-the-counter (OTC) nasal decongestant inhaler often used for colds, hayfever and allergies. If it’s not used as instructed, the OTC drug can cause a positive drug test and serious harm (think: heart, lung and psychological health problems). Keep in mind that using any medication inappropriately is dangerous and can result in serious risks. As a Service member, make sure to follow directions and use medications as prescribed or indicated on the box. If you’re not sure, ask a pharmacist or your health care provider to protect your health and career.