Erectile dysfunction medications require a prescription from a licensed provider. ED medications can cause side effects, and it’s crucial to have access to a medical provider if needed. Online pharmacies also may not fill short-term prescriptions, such as those for antibiotics. These PDE5 inhibitors may cause headache, flushing, drop in blood pressure, or other adverse effects. Online pharmacies can be broadly categorized as: Mail-order pharmacies are operated by pharmacy benefits managers PBMs on behalf of health insurers or providers.The cost for Levitra oral tablet 20 mg is around $16 for a supply of 2 tablets, depending on the pharmacy you visit. Quoted prices are for cash-paying customers and are not valid with insurance plans. This price guide is based on using the discount card which is accepted at most U.S. pharmacies. How much does generic Levitra cost? Generic vardenafil is usually much cheaper than its brand-name options, Staxyn or Levitra. The exact price varies depending on where you buy it. Health and wellness Drug encyclopedia Levitra 20 mg tablet Medication name Uses How to use Side effects Precautions Drug interactions Overdose Notes Missed dose Storage Important note Information last revised August .