Do not use if you have diabetes mellitus in which blood sugar is difficult to regulate. If you have an immune-compromised condition (e.g. AIDS, lymphoma, patients undergoing long-term corticosteroid treatment), do not use this product. If symptoms persist or worsen, consult a health care practitioner. Do not use if you are pregnant or breast feeding. Consult a health care practitioner immediately if you experience chest pain, vomiting, or difficulty in swallowing or breathing after taking this product. Hypersensitivity, such as allergy, has been known to occur following inhaled and/or ingested psyllium; in which case, discontinue use. Consult a health care practitioner prior to use if you are taking thiazide diuretics, corticosteroids, licorice root or other medications or health products which may aggravate electrolyte imbalance. Consult a health care practitioner prior to use if you have a kidney disorder or are taking cardiac medications such as cardiac glycosides or antiarrhythmic medications. Reduce dose or discontinue use if you experience abdominal pain, cramps, spasms and/or diarrhea. Do not use if you have abnormal constrictions of the gastro-intestinal tract, potential or existing intestinal blockage, atonic bowel, appendicitis, inflammatory colon disease such as Crohn's disease or ulcerative colitis, abdominal pain of unknown origin, undiagnosed rectal bleeding, severe dehydration with depleted water or electrolytes. Laxative effect may occur.