Cialis will be available by prescription only. If you need emergency medical care for a heart problem, it will be important for your health care provider to know when you last took Cialis. If you have an erection that lasts for more than 4 hours, you should go to the nearest hospital emergency department. Tadalafil was approved in in the United States for the treatment of pulmonary arterial hypertension [28] and is under regulatory review in other regions for this condition. The safety and effectiveness of Cialis when used with other treatments for impotence has not been studied. Some studies show that Cialis reaches its maximum effect around two hours after taking an as-needed dose. Society and culture[ edit ] Marketing[ edit ] Cialis 5mg UK pack of 28 tablets In the United States, the FDA relaxed rules on prescription drug marketing in , allowing advertisements targeted directly to consumers.The recommended starting dose for Cialis intended for once daily use is mg, take at the same time each day, without regard to timing of sexual activity. This may be increased to 5mg/day based on need and tolerability. May be taken with or without food. Cialis is available as a generic, under the name tadalafil. 3. Published on October 18, warning This article is no longer being updated and some information may not be current. Visit the GoodRx Healthhomepage for our latest articles. We have good news for you: generic Cialis, used to treat erectile dysfunction (ED)and enlarged prostates, just hit pharmacies. Try the generic Cialis option for a fraction of the cost, after speaking with one of our online medical professionals. Health services Our medical team can give you a prescription for sildenafil 20mg. The Lemonaid Pharmacy can deliver it to you for $2/pill, including FREE delivery. Our medical team can prescribe it in a 20mg.