Generic Name: valsartan (val SAR tan) Brand Names: Diovan What is the most important information I should know about valsartan? • Do not take valsartan if you are pregnant or could become pregnant during treatment. When used during the second and third trimesters of pregnancy, valsartan can cause injury and even death to the developing baby. Notify your doctor immediately if you think you might be pregnant. • Use caution when driving, operating machinery, or performing other hazardous activities. Valsartan may cause dizziness or drowsiness. If you experience dizziness or drowsiness, avoid these activities. Also use caution when rising from a sitting or lying position. • Use alcohol cautiously. Alcohol may further lower blood pressure and increase drowsiness and dizziness while taking valsartan. What is valsartan? • Valsartan is in a class of drugs called angiotensin II receptor antagonists. Valsartan prevents the constriction (narrowing) of blood vessels (veins and arteries). • Valsartan is used to treat high blood pressure (hypertension), heart failure and to reduce cardiovascular death in certain heart attack survivors. • Valsartan may also be used for purposes other than those listed in this medication guide.