Nitrates come as tablets, sublingual under the tongue tablets, sprays, patches, pastes, and ointments. An interaction between two medications does not always mean that you must stop taking one of them. If Cialis is too weak for you, then with Cialis Professional you will be completely satisfied. Talk to your doctor about which dosing schedule is right for you. Children and adolescents: Cialis Tadalafil is not intended for use by children or adolescents under 18 years old.The drug comes in low-dose versions that can be taken daily. This means you can have sex at any time, rather than needing to take a pill from time to time as needed like other ED brands. The starting dose for daily-use Cialis is milligrams (mg). If that doesn’t work, you can increase your daily dose up to 5 mg. Cialis comes in several different strengths, including: milligrams (mg) 5 mg. 10 mg. 20 mg. The cost for these different strengths depends on whether you have insurance, your individual plan. AdGet your ED medication shipped in an unmarked package within 4 hours at $0 delivery fee. Have a burning question on ED? Speak to our concierge team to learn more about treatments.