washington u.s. senate permanent subcommittee investigations probe mylan pharmaceuticals price allergy auto-injector epipen accord press release issue wednesday release describe probe preliminary inquiry mylan criticize include democratic presidential candidate hillary clinton sharply raise price epipens carry people life-threatening allergies mylan raise price 100 2008 600 currently offer discount do little allay concern review matter robust thorough bipartisan parent school district ohio missouri across country need affordable access life-saving drug share concern mylan sustain price increase senators rob portman republican chair subcommittee claire mccaskill top democrat say statement mylan immediately respond request comment senate investigations panel probe mylan 's epipen price