They are also used as excipients in pharmaceutical products where lower molecular weight variants are used as solvents in oral liquids and soft capsules. Solid variants are used as ointment bases, tablet bindings, film coatings and lubricants.
Macrogol (polyethylene glycol) is sold as non-prescription preparation in powder form under trade names SoftLax, Miralax, Glycoprep, Movicol, Macrogol (generic), Cololyt, among others. It is dissolved in a glass of water to create a clear, tasteless and odorless solution and is swallowed.
^Zangaglia R, Martignoni E, Glorioso M et al. (2007). "Macrogol for the treatment of constipation in Parkinson's disease. A randomized placebo-controlled study". Mov. Disord.22 (9): 1239–44. doi:10.1002/mds.21243. PMID17566120.