Dr. Hanif warmly welcomes you with thanks for a consult! I have carefully worked through your case, and can well realize your health worries. Being your physician, I want to assure, I will take care all of your medical concerns according to the latest medical guidelines. Lisinopril causes such issues when we: Take higher than needed dose. It lowers the blood pressure. Now either you have got low blood pressure and dizzy spells due to the low blood pressure caused by the medication that you are taking from a new company. Sometimes there is an issue with the batch of some products of medications of pharmaceuticals. What we do in such a case, is that we contact the pharmaceutical or we see the daily guidelines of FDA that are released after the pharmaceutical has noticed some issue with the batch of specific product. If there is some issue actually reported, we discontinue if the medicine is from the same batch. I suggest you to discontinue taking this brand and shift to the previous one you usually take. If the problem still persist even after changing the brand, then consult back your treating physician right away. He will review the medicines after careful evaluation. Keep an eye on your blood pressure meanwhile and don t drive or handle machinery. Hope I answered all of your questions. Please click on I Find This Answer Helpful and don t forget to add your precious positive feedback to help me able to assist you better in future too. For any disease you have, a timely follow-up regarding the treatment efficacy and to see if there is any need to change the treatment options is very necessary. So keep a follow up to see how you doing. Remember to write down my name in the start of your question next time, & I will be with you right away. I am available 24/7 for providing you expert medical opinion on any health issue. Have a blessed time ahead. Regards! DR. MUHAMMAD HANIF USA FOR DIRECT QUESTIONS: http://doctor.healthcaremagic.com/Funnel?page=askDoctorDirectly&docId=70199