Is Cialis Better Than Viagra?

Both Cialis (tadalafil) and Viagra (sildenafil) are phosphodiesterase-5 (PDE5) inhibitors used to treat impotence (erectile dysfunction, or ED). Cialis is also used to treat enlarged prostate.

Common side effects of both Cialis and Viagra include: 

• Flushing (redness or warmth of the face, neck, or chest)
• Headaches
• Stomach pain or upset
• Flu-like symptoms (stuffy nose, sneezing, or sore throat)
• Memory problems
• Muscle or back pain
• Blurred vision 
• Changes in color vision (such as inability to differentiate between the colors blue and green)
• Dizziness
• Diarrhea
• Nausea
• Low blood pressure
• Abnormal ejaculation
• Loss of hearing
• Ringing in the ears
• Prolonged erections (priapism)

Both drugs treat erectile dysfunction, but there are some differences. It’s not that one is better than the other but rather, which one is the right drug for the patient based on their history and overall physical health. 

• Cialis can remain in the system for up to 36 hours so it allows for the ability to get an erection over a longer period than Viagra, which only lasts for 4 to 6 hours
• Cialis may be taken in a low dose every day so the drug can remain in the body, while Viagra is only intended to be taken as needed
• Cialis is taken 30 minutes before sexual intercourse, while Viagra can be taken 30 to 60 minutes prior to sex
• Cialis may cause limb pain, while Viagra is not expected to have this side effect
• Cialis is also approved to treat enlarged prostate