Hyland's Naturals Seasonal Allergy Relief Tablets is safe and non-habit forming. Our gentle homeopathic formulas are made with all natural active ingredients. There are no known side-effects and will not conflict with any medications you may be taking. Hyland's Naturals is a leading consumer health brand with more than a century of history making high quality products to help people live healthier and happier lives. Made with natural active ingredients, our products contain no artificial flavors or sugars, dyes or parabens. With a state-of-the-art, FDA regulated and cGMP compliant facility, our top-selling products are sold in more than 15 countries and can be found in every major retailer in the United States.