 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  dose of vardenafil to minimize your risk of low blood pressure. Other medications can affect the removal of vardenafil from your body, which may affect how vardenafil works. Examples include azole antifungals (such as itraconazole, ketoconazole), macrolide antibiotics (such as clarithromycin, erythromycin), HIV protease inhibitors (such as indinavir), ritonavir, among others. Do not take this medication with any other product that contains vardenafil or other similar medications used to treat erectile dysfunction-ED or pulmonary hypertension (such as sildenafil, tadalafil). Does Levitra interact with other drugs you are taking? Enter your medication into the WebMD interaction checker Check InteractionThe overdose of Levitra Oral: If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: back/muscle pain, abnormal vision.  Notes Do not share </s>