Pharmaceutical compositions comprising 3-(6-(1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamido)-3-methylpyridin-2-yl)benzoic acid (Compound 1) in Form I and a solid dispersion comprising substantially amorphous N-(5-hydroxy-2,4-ditert-butyl-phenyl)-4-oxo-1H-quinoline-3-carboxamide (Compound 2), methods of treating, lessening the severity of, or symptomatically treating CFTR mediated diseases, such as cystic fibrosis, methods of manufacturing, methods of administering, and kits thereof are disclosed.