If you've ever found yourself absentmindedly humming the "oh-oh-oh-Ozempic" jingle, you have David Paton to blame. The singer-songwriter ... co-wrote "Magic" the 1975 hit for his band Pilot that he reworked and sang for the trendy weight-loss drug's TV commercials, which play incessantly. "I have heard from doctors about patients not remembering the names of drugs but singing the songs," a former product manager for drug companies that include Merck and Pfizer, [said]. It can cost billions of dollars to develop a pharmaceutical, so promoting it is essential. And that all starts with the name. "We try to craft a name that [has] five to nine letters and two to four syllables." But it even comes down to the exact letters. "Let's say there is an oral drug instead of an injectable, we'll explore something that sounds liquidy or has an O in it," Fernando Fernandez, managing director of BX: Brand Experience Design Group, [said]. "If we expect a product to have an extra level of efficacy, we might put an X in the name." Consumers like taking drugs with the letter Z, which may have played a role in the naming of Ozempic and Zepbound. According to the Canadian Medical Journal, the letters X, Y and Z all impart a "high tech, sciency" [sic] feeling to drugs such as the sleeping medication Xanax. "People have hesitancy about taking drugs," a medical advertising veteran told The Post. "If they don't have diabetes, they wonder why they are taking a diabetes drug to lose weight. The weight-loss drug has to be called something different, even though it is very close to being the same thing. The name Wegovy is playful and memorable and obviously works."