4 g: There is a possibility that the absorption of other medicinal products could be transiently reduced during use with FORLAX, particularly medicinal products with a narrow therapeutic index or short half-life such as digoxin, anti-epileptics, coumarins and immunosuppressive agents, leading to decreased efficacy.
10 g: FORLAX may interfere with the absorption of other drugs if administered simultaneously. Generally, it is better to take FORLAX at least 2 hours apart from other products.