whether the popular laxative, phenolphthalein, is carcinogenic

There's a controversy brewing over whether the popular laxative, phenolphthalein, is carcinogenic.

Phenolphthalein is carcinogenic in mice and rats...the makers of Ex-Lax insist that it is safe in humans.

The makers of Correctol have recently reformulated one of their products...replacing the phenolphthalein with bisacodyl.

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