Before you begin treatment with Venclexta, discuss the following with your doctor:, All the medications you take, including prescription and over-the-counter medications, Your allergies, Your past medical history and current health problems, If you are pregnant or breastfeeding, Tumor Lysis Syndrome should be anticipated and the risk assessed in all patients. Premedication and hydration should be initiated., Low white blood cell counts may occur with Venclexta treatment., Infections can occur with Venclexta treatment. Seek medical care if you develop signs and symptoms of an infection., Live vaccines should not be administered before, during, or after treatment with Venclexta until your doctor tells you it’s ok., Venclexta can cause harm to an unborn baby. Effective methods of birth control should be used., Patients with multiple myeloma should not take Venclexta with bortezomib plus dexamethasone unless they are participating in a controlled clinical trial. All the medications you take, including prescription and over-the-counter medications, Your allergies, Your past medical history and current health problems, If you are pregnant or breastfeeding