Tadalafil Cialis. Online pharmacies can be broadly categorized as: Mail-order pharmacies are operated by pharmacy benefits managers PBMs on behalf of health insurers or providers. They include dutasteride Avodart, Jalyn and finasteride Propecia, Proscar. The body takes longer to absorb it after a high-fat meal or alcohol. Common side effects include headache, facial flushing, indigestion, and dizziness.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 . Brand name: $ to $1, for ten to thirty 10 mg tablets Generic: $ to $ for ten 10 mg tablets But your out-of-pocket cost for Levitra may depend on a few . Avanafil (Stendra). Sildenafil (Viagra). Tadalafil (Cialis). Vardenafil. These medicines are called PDE5 inhibitors. They enhance the effects of a chemical the body .