A member asked:

I am highly allergic to propylene glycol. is it safe to take a medication containing polyethylene glycol? are these two different??

5 doctors weighed in across 2 answers

Yes (safe to take): Propylene glycol is a potentially unsafe propane agent, and polyethylene glycol is a VERY SAFE laxative, effective for constipation with minimal absorption or side effects. These are two very different products.

Answered 2/19/2015

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Dr. John Chiu answered

Yes: They are quite different although with similar sounding names.

Answered 1/15/2016

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