They are not, however, to be confused with decongestants. They also cause drowsiness. Each of these brand names also markets a combination drug including a decongestant and an antihistamine. Patients with high blood pressure should consult a physician before taking decongestants. If Metamucil is unavailable, other similarly acting laxatives include Citrucel, Fibercon and Fiberall.
Generic forms are as effective as the brand name product.
Other similar products include Dulcolax, Ex-Lax, and Correctol. Kaopectate functions by absorbing excess body fluids to combat diarrhea. Donnagel is another similarly working medication. Maalox Anti-Diarrheal also uses loperamide. Tagamet HB and other heartburn-relief products function by blocking acid secretion in the stomach.