PHILADELPHIA--(BUSINESS WIRE)--Lannett Company, Inc. (AMEX:LCI), a manufacturer of generic pharmaceuticals, today said that it expects to commence marketing Amantadine Hydrochloride Soft Gel Capsules 100mg, within the next several months. According to Wolters Kluwer, annual sales in 2007 of both the generic and brand product totaled $30 million.