Lax suppository for constipation.
Glycerol is a polylic derivative that behaves as a laxative when administered rectally. Its effects are due to a double mechanism of action: * Irritating effect on the rectal mucosa, without affecting the distal walls of the intestine. The local contraction of the rectum muscles causes the expulsion of the stool in a short time. * Osmotic effect. Glycerol has a great hygroscopic capacity, producing the passage of water into intestinal light. The increase in water, together with the lubricating properties of sorbitol, soften the faeces and facilitate their elimination. Effects take 15-30 minutes to an hour to appear.