“Mefenamic acid, apart from India (as Meftal and Meftal-Spas), is being prescribed in countries like USA, UK, Japan, etc., for more than four decades with billions of doses administered and has benefitted millions of patients,” it added. Meftal spas in usa is an anti-inflammatory and non-steroidal drug manufactured by Blue Cross Laboratories Pvt. Ltd. It is available in tablet form and cannot be bought over the counter without a bona fide prescription.