Alcohol: It is not known whether it is safe to consume alcohol with Vavir 500mg Tablet. Please consult your doctor. Pregnancy: Vavir 500mg Tablet may be unsafe to use during pregnancy. Although there are limited studies in humans, animal studies have shown harmful effects on the developing baby. Your doctor will weigh the benefits and any potential risks before prescribing it to you. Please consult your doctor. Breastfeeding: Vavir 500mg Tablet is probably unsafe to use during breastfeeding. Limited human data suggests that the drug may pass into the breastmilk and harm the baby. Driving: Vavir 500mg Tablet may decrease alertness, affect your vision or make you feel sleepy and dizzy. Do not drive if these symptoms occur. Kidney: Vavir 500mg Tablet should be used with caution in patients with kidney disease. Dose adjustment of Vavir 500mg Tablet may be needed. Please consult your doctor.Drink plenty of water while you are taking this medicine to lower the side effects on the kidney. Liver: Vavir 500mg Tablet is safe to use in patients with liver disease. No dose adjustment of Vavir 500mg Tablet is recommended.