The combination of Lutein, Zeaxanthin, Vitamin, and Vitamin B; packaged together as Xanthin Plus Tablets is commonly prescribed to help aid vision difficulties that result from a deficiency of Lutein, Vitamin A, etc. Treatment with Xanthin Plus Tablets has been shown to improve vision in low light conditions as well as in night time, increase a patient’s visual acuity, and improve contrast sensitivity of objects.How does it works : It is used to restore Lutein, Zeaxanthin, and vitamins (A and B) levels in the body of patients suffering from certain deficiencies or to maintain healthy Lutein and vitamin levels for healthy functioning of the body.Dosage : A tablet a day is most commonly prescribed to patients aged 18 years and above OR As prescribed by the physician .