.Last month, Ranbaxy pleaded guilty to US charges of selling adulterated antibiotic, acne, epilepsy and other drugs and agreed to a record $500-million fine, and since then the bad news has kept on flowing.In a new blow at the end of the week, Apollo Pharmacy, India's biggest branded drug retail network with more than 1,500 outlets, issued a cautionary advisory against drugs made by Ranbaxy.A Ra