The drug is approved for use in adults. Resources and support See the Healthy Male site for more information about erectile dysfunction and its treatment. Cialis was also investigated in combination with finasteride, another BPH medication, in another trial. Cialis is not recommended for people taking any form of nitroglycerin because the combination may lower blood pressure to an unsafe level. Can Cialis be used with other treatments for impotence?Roman sells the following versions of Cialis: Generic: available in tablets of 5, 10, and 20 milligrams (mg), starting from $11 Daily Generic: available in doses of and 5 mg at $8 Branded. Tadalafil (Adcirca, Alyq) is an expensive drug used to treat pulmonary arterial test1.ru drug is less popular than comparable drugs. It is available in both brand and generic versions. Generic tadalafil is covered by most Medicare and insurance plans, but some pharmacy coupons or cash prices may be lower. The most commonly reported side effects in patients treated with Cialis during the testing of the product were: headache. indigestion. back pain. muscle pain. flushing. stuffy nose. Patients who.