Acivir Tablet contains acyclovir, a medicine used to treat certain viral infections. Changes in periods are not a common side effect of this medicine. If you notice unusual bleeding after taking Acivir, it may be due to other reasons, such as stress or hormonal changes. If the bleeding is heavy, lasts longer than usual, or keeps happening, speak to your doctor. Do not stop your prescribed medicine without medical advice.For general information, visit Online Generic Medicine.
