How to take Cialis?

- If you have kidney problems, your doctor may start you on a lower dose of Cialis.
- If you have kidney or liver problems or you are taking certain medications, your doctor may limit your highest dose of Cialis to 10 mg and may also limit you to one tablet in 48 hours (2 days) or one tablet in 72 hours (3 days).
- If you have prostate problems or high blood pressure for which you take medicines called alpha blockers, your doctor may start you on a lower dose of Cialis.
Take one Cialis tablet before sexual activity. In some patients, the ability to have sexual activity was improved at 30 minutes after taking Cialis when compared to a sugar pill. The ability to have sexual activity was improved up to 36 hours after taking Cialis when compared to a sugar pill. You and your doctor should consider this in deciding when you should take Cialis prior to sexual activity. Some form of sexual stimulation is needed for an erection to happen with Cialis. Cialis may be taken with or without meals.

Do not change your dose of Cialis without talking to your doctor. Your doctor may lower your dose or raise your dose, depending on how your body reacts to Cialis.

Do not drink alcohol to excess when taking Cialis (for example, 5 glasses of wine or 5 shots of whiskey). When taken in excess, alcohol can increase your chances of getting a headache or getting dizzy, increasing your heart rate, or lowering your blood pressure. If you take too much Cialis, call your doctor or emergency room right away.