Hyland's BackAche with Arnica is a traditional formula for the relief of symptoms of Discomforts in the lower back Discomfort due to strain, overexertion, cold or exposure. Hyland's BackAche with Arnica contains Arnica Montana, which is the most commonly used homeopathic medicine for the relief of muscular Discomfort. Working without contraindications or side effects, Hyland's BackAche with Arnica stimulates your body's natural healing response to relieve symptoms. Hyland's BackAche with Arnica is safe for adults and children and can be used in conjunction with other medications.