What important instruction should be given to a client prescribed psyllium for constipation?

The instruction to take each dose of psyllium with a full glass of water is crucial for several reasons. Psyllium is a bulk-forming laxative that works by absorbing water and swelling in the intestines, which helps to promote bowel movements. If not enough water is consumed with the psyllium, it can lead to the formation of a thick mass that may cause intestinal blockage or make the constipation worse rather than alleviating it.

Adequate hydration is essential when taking psyllium because it helps the substance to expand properly and facilitates its movement through the gastrointestinal tract. Therefore, consuming a full glass of water with each dose aids in ensuring the laxative effect is effective and reduces the risk of complications associated with inadequate fluid intake.

This emphasizes the importance of hydration not only for the efficacy of the laxative but also for overall digestive health while using this medication.