Abstract
Sodium picosulphate is the active ingredient of Laxoberal (WBP), a recently introduced liquid laxative. It belongs to the phenylmethane group of laxatives of which phenolphthalein BP and bisacodyl BP (Dulcolax) are examples. The preparation contains no other active ingredient and is promoted for any form of constipation in both children and adults; it is claimed to produce a soft but formed stool in 10–14 hours. It is produced by a subsidiary of Boehringer (who make Dulcolax) and is therefore an example of unacknowledged within-company competition.

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