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Cialis, also known as tadalafil, is a prescription medication that works similarly to Viagra by increasing blood flow to the penis, thereby helping men with ED achieve and maintain an erection during sexual activity. However, there are some key differences between the two medications.
One of the main advantages of Cialis is that it has a longer duration of action compared to Viagra. While Viagra typically lasts for up to four hours, Cialis can last for up to 36 hours. This longer duration of action can allow for greater flexibility in sexual activity, as men can take the medication well in advance and not have to worry about timing their dose precisely.
Another advantage of Cialis is that it can be taken with or without food, whereas Viagra should be taken on an empty stomach to maximize its effectiveness. This can make Cialis a more convenient option for men who may not want to plan their sexual activity around meals.
Standard doses of Cialis range between 10mg to 20mg. Evidence shows that doses over 20mg do not provide better results.