Ultimately, the best option depends on your needs, lifestyle and preferences. Healthy erections are all about blood flow. Thanks to the higher dose, as-needed Cialis starts working quickly and typically reaches its peak concentration within two hours. You can take tadalafil on its own or with a meal without affecting the amount of time it takes for the medication to start working. The Cialis tablet can be taken for different purposes more on those later in four different FDA-approved doses: 2. Alcohol may also temporarily lower your blood pressure.Cialis is an effective treatment for mild to severe ED. On the standard starting dose of 10mg of the active ingredient in Cialis, tadalafil, 71% of men reported an erection suitable for sex. On a higher 20mg dose of tadalafil, 73% of men reported improved erections. On Cialis Daily, 84% of men reported improved erections and 72% preferred. AdWe Offer an Extensive Selection Of Everything Else Store At Amazon. Order Today! Get Deals and Low Prices On pharmacy prescriptions At AmazonServices: Pet Supplies, Pharmacy, Medical Care, Anxiety, Hypothyroidism and more. Cialis Dosages. The most appropriate Cialis dose for you will depend on your needs, your healthcare provider’s assessment and how well you respond to the medication. Cialis is available in two forms: As a daily-use medication in dosages of mg and 5mg. For use as needed in dosages of 10mg and 20mg.