LONDON, Nov. 21, 2016 /PRNewswire/ -- Prescription barriers boost market share for 6 of the 10 brands we surveyed. Is yours losing out?In the highly competitive multiple sclerosis (MS) treatment market, prescription barriers helped 6 of the 10 brands we surveyed eke out narrow market share gains while the other 4 lost out. Which barriers had the biggest impact? Are they the ones that caused the least prescribed brand to lose two or more times as much market share as any other?Find out in Market Access Impact: MS. Request sample pagesThe report covers 10 major MS drugs from Bayer, Biogen, Genzyme, Merck Group, Novartis, and Teva. You'll learn which barriers cost your brand the most share, and see which competitors you're losing share to and taking it from—insight you can use to improve your market access strategy.Not your market? Click here to see the US report Top Takeaways Most surveyed brands are widely prescribed: More than three quarters of the neurologists surveyed prescribe eight of the ten brands covered, and nearly all of them prescribe the top two brands.Highly competitive market: Even brands that see sizeable barrier-related share gains see significant losses as well. Nevertheless, six brands did manage modest net gains.Patient-related barriers have the greatest impact: Barriers related to patient preferences and restrictions affect more prescriptions than all other barriers combined.Excellent brand awareness and perception: Nearly all doctors surveyed are aware of the brands covered, and most of them are willing to consider brands they don't currently prescribe.Clear market loser: More doctors experience barriers with one brand in particular. Not surprisingly, that brand is least prescribed.