Miralax is taken on a daily basis. Same mechanical basis as taking a bulk fiber. Take daily bulk fiber and the bowel will move unless you are bed ridden. Laxative's are marketed on a daily basis dosing schedule. 100g of the salt cost roughly $10 on a manufacturing/wholesale basis. 11 cents retail cost for a 300mg tab. $1 a gram = .001 cents per pill to make. 1000% profit on the salt per pill or .109 cents per pill. Subtract marketing, packaging, advertisement, R&D, sales and management = 1-3 cents operating margin per pill. 1000000 pills sold => $10000 profit. Just trying to put things into perspective.
contrarian, I'll admit you have me rather confused (as usual). So you're saying that while they can acheive 70%+ profit margin on Visicol as a prep for colonoscopy, they can acheive only 5% profit margin on the same drug as a laxative??? I truly doubt it.