Cialis (Tadalafil) belongs to a group of medications called phosphodiesterase type 5 inhibitors. It is used to treat Erectile Dysfunction (male impotence). It helps to achieve and maintain an erection sufficient for sexual activity to occur. It does this by allowing a greater flow of blood into the penis when a man taking the medication is sexually aroused. It works only with sexual stimulation an...More on Cialis indication

Levitra (Vardenafil) belongs to the class of medications called phosphodiesterase type 5 inhibitors. It is used to treat Erectile Dysfunction (male impotence). It helps to achieve penile erection sufficient for sexual activity to occur. It does this by allowing a greater blood flow into the penis when a man taking the medication is sexually aroused. It works only with sexual stimulation and does...More on Levitra indication

Many medications can cause side effects. A side effect is an unwanted response to a medication when it is taken in normal doses. Side effects can be mild or severe, temporary or permanent. The side effects listed below are not experienced by everyone who takes Cialis (Tadalafil). If you are concerned about side effects, discuss the risks and benefits of Cialis (Tadalafil) with your doctor. The fol...More on Cialis side effects

Many medications can cause side effects. A side effect is an unwanted response to a medication when it is taken in normal doses. Side effects can be mild or severe, temporary or permanent. The side effects listed below are not experienced by everyone who takes Levitra (Vardenafil). If you are concerned about side effects, discuss the risks and benefits of Levitra (Vardenafil) with your doctor. T...More on Levitra side effects

Do not take Cialis (Tadalafil) if you: are allergic to Cialis (Tadalafil) or any ingredients of Cialis (Tadalafil) have had vision loss caused by an eye condition called nonarteritic anterior ischemic optic Neuropathy (NAION) are taking the medication Riociguat or other similar medications are taking (or have taken in the past 48 hours) any type of nitrate medication in any form (oral, sub...More on Cialis contraindications

Do not take Levitra (Vardenafil) if you: are allergic to Levitra (Vardenafil) or any ingredients of Levitra (Vardenafil) are taking (or have taken in the past 24 hours) any medication that contains nitrates (e.g., amyl nitrite "poppers," isosorbide mononitrate, isosorbide dinitrate, Nitroglycerin, nitric oxide) are taking Cobicistat, atazanavir, indinavir, ritonavir, or saquinavir (f...More on Levitra contraindications

There may be an interaction between Cialis (Tadalafil) and any of the following: Abiraterone alcohol alpha-blockers (e.g., Alfuzosin, doxazosin, Terazosin) Alprostadil alpha agonists (e.g., Clonidine, methyldopa) Amiodarone angiotensin-converting enzyme inhibitors (ACEIs; Captopril, Enalapril, Ramipril) angiotensin receptor blockers (ARBs; e.g., candasartan, Irbesartan, Losartan)...More on Cialis precautions

There may be an interaction between Levitra (Vardenafil) and any of the following: alcohol Aldesleukin Aliskiren alpha-agonists (e.g., Clonidine, methyldopa) alpha-blockers (e.g., Alfuzosin, doxazosin, Terazosin) Alprostadil Amiodarone angiotensin converting enzyme inhibitors (ACEIs; Captopril, Ramipril) angiotensin receptor blockers (ARBs; e.g., Candesartan, Irbe...More on Levitra precautions