By interfering with viral DNA, Acyclovir Tablets can achieve the efficacy and effect of viral inhibition and antiviral, which is suitable for the treatment of herpes simplex virus infection, herpes zoster, and chickenpox in immunodeficient people. Adverse reactions such as dizziness, nausea, arthralgia, stomach upset, itchy skin may occur after taking acyclovir tablets, and side effects such as insomnia, menstrual disorders, acne may also occur with long-term use. Nursing women, dehydration, as well as hepatic and renal insufficiency should be used with caution. Patients should drink plenty of water during the use of the drug to avoid precipitation of the drug in the renal tubules. It is contraindicated for those who are allergic to the product. If you want to know the efficacy and effects of acyclovir tablets, you can go to a regular hospital to consult a doctor, use the drug under the guidance of the doctor, and strictly prohibit the unauthorized use of drugs.