There are many safe, reliable online services offering ED prescriptions. Persons surnamed “Cialis” objected to Eli Lilly and Company’s so naming the drug, but the company has maintained that the drug’s trade name is unrelated to the surname. Your doctor may need to change the doses of your medications or monitor you carefully for side effects. Erectile dysfunction medications require a prescription from a licensed provider. Mechanism of action[ edit ] Penile erection during sexual stimulation is caused by increased penile blood flow resulting from the relaxation of penile arteries and the smooth muscle of the corpus cavernosum. If Cialis is too weak for you, then with Cialis Professional you will be completely satisfied.Key takeaways: Telemedicine helps you access healthcare easier — through online access. It lets you have a medical visit and get a prescription online without having to see a provider in person. With telemedicine, an online provider can review your medical history, check your symptoms, and treat you. So getting a prescription is easier. Unlike Viagra, no need to plan ahead. Take it and forget it. Get started About Cialis Is Cialis approved for ED? Yes. Cialis is approved by the FDA to treat erectile dysfunction (ED). . 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.