This medicine works best when you take it on an empty stomach an hour before sex. They enhance the effects of a chemical the body makes that relaxes muscles in the penis, called nitric oxide. For example, Cialis lasts up to 36 hours in the system and can be taken as a daily dose. From there, your Cialis prescription will be shipped from their distributors to your front door. BPH occurs when the prostate and the surrounding tissues become enlarged. These medicines all work well for ED. · The typical dose for once-daily Cialis for ED is milligrams (mg) to 5 mg. When used as needed for ED, the usual Cialis dose is 10 mg (with a maximum daily dose of 20 mg). The typical dose of.  · The most promising supplement for boosting testosterone, according to Dr. Desai, is ashwagandha. A study in the American Journal of Men’s Health examined overweight men, ages 40 to 70, with. Best Low Cost: GoodRx Fastest Delivery: Blink Health: Sesame Sign Up Now Key Specs Cost: Consultation prices vary based on the prescriber; $5 generic prescriptions Medical .