Description Whether you're looking for prevention or a cure, Leiner Health Products has a pill for you. The company is a top maker of vitamins, minerals, supplements, and OTC drugs sold primarily under private labels, but also under its own labels (such as Pharmacist Formula and Your Life). Its OTC drugs include cold medicines and analgesics such as ibuprofen and naproxen. Leiner also provides contract manufacturing services for other pharmaceutical companies. The company's products are sold in supermarkets, drugstores, and other outlets, including Wal-Mart and Costco in Canada and the US. North Castle Partners and Golden Gate Investors each own 49.6% of Leiner Health Products.