LEVITRA DRUG INTERACTIONS
Usually drug interactions occur when a drug is taken with another drug or with food. The drugs that interact with Levitra include certain antibiotics, antifungals, alpha blockers, protease inhibitors, heart arrhythmia medicines, nitrate medicines and recreational drugs called poppers.
Before taking Generic for Levitra, it is important to inform doctor about your intake of medicines including prescription and nonprescription medicines, vitamins and herbal supplements so that the doctor can warn you of any possible drug interactions.
Before using Generic for Levitra, ask the following questions to the doctor:
- Is it possible for me to take Generic for Levitra with other drugs?
- Should certain beverages, foods and other products be avoided when I take Generic for Levitra?
- What are the possible drug interactions of Generic for Levitra?
- How will Generic for Levitra work in my body?
- How should Generic for Levitra be taken?
- How to reduce the risk of Generic for Levitra drug interactions and side effects?
Your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with them first.
This drug should not be used with the following medications because very serious (possibly fatal) interactions may occur:
- nitrates (e.g., nitroglycerin, isosorbide)
- nitroprusside (or any "nitric oxide donor" drugs)
- recreational drugs called "poppers" containing amyl or butyl nitrite
If you are currently using any of these medications, tell your doctor or pharmacist before starting vardenafil.
Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of:
- alpha-blocker medication (e.g., doxazosin, prazosin, terazosin, or doses greater than 0.4 milligrams daily of tamsulosin)
- other medications for impotence
- drugs that affect certain liver enzymes (CYP 3A4 substrates, inhibitors and inducers, e.g., cimetidine, rifamycins, St. John's wort, certain anti-seizure drugs)
- high blood pressure medicines
If you are taking ritonavir or nelfinavir, do not take more than a 2.5 milligrams dose of vardenafil in a 72 hour period. If you are taking indinavir or high doses (400 milligrams daily) of either ketoconazole or itraconazole, do not take more than a 2.5 milligrams dose of vardenafil per day. If you are taking erythromycin or low doses (200 milligrams daily) of either ketoconazole or itraconazole, do not take more than 5 milligrams dose of vardenafil per day. For more details contact your doctor or pharmacist.
Many drugs besides vardenafil may affect the heart rhythm (QT prolongation), including dofetilide, pimozide, amiodarone, quinidine, sotalol, procainamide, macrolide antibiotics (such as erythromycin), sparfloxacin, among others. Therefore, before using vardenafil, report all medications you are currently using to your doctor or pharmacist.
Drugs other than those listed here may also interact with Generic for Levitra. Talk to your prescriber or health care professional about other medicines that may increase the effect of Levitra before taking any prescription or over-the-counter medicines.
Also, tell your prescriber or health care professional if you are a frequent user of drinks with caffeine or alcohol, if you smoke, or if you use illegal drugs. These may affect the way your medicine works. Check with your health care professional before stopping or starting any of your medicines.
This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.
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