I've been prescribed Hycodan cough syrup. From checking online, I gather one teaspoon equals 5 mg of hydrocodone. In addition to the hydro, it also comes with something known as homatropine methylbromide. Every site I've seen says that it's to avoid "overdosage." Does this mean that it helps lessen the risk of a deadly OD or that it interferes with the high? Any insight is appreciated.