Mumbai, May 16 :    Mumbai, May 16:  Pharmaceutical stocks zoomed on reports that the government would loosen its tight grip on the industry by curtailing the list of drugs where it fixes prices to 31 from 74. There was no official word from the capital about when the Drug Price Control Order (DPCO) - the charter that contains the list of drugs to be priced by the government - would be revised, but the mere indication that it would be done some time next week sent shares soaring on Dalal Street today. Operators and institutions rushed into pharmaceutical stocks, propelling some of them by the maximum permissible 8 per cent, while others were up 13 per cent over their previous close. The Glaxo scrip surged 10 per cent or Rs 35.60 at Rs 383.45, Burroughs Wellcome finished 12.88 per cent higher at Rs 205.45 and E-Merck shot up by 11.84 per cent at Rs 471 and Ranbaxy finished at Rs 486.60. According to market sources, block-buster drugs from the Glaxo stable, such as ranitidine (anti-ulcer) sold under the Zinetac brandname, will be off controls, in addition to Dr Reddy's Zoran, Cipla's Ultac and Torrent Pharma's Ranitin.