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Change of HbA1c from baseline to end point was evaluated by a ranked ANOVA model. Each randomized patient was eligible for the efficacy analysis. The content of this website is provided for informational use only and should not be used as a substitute for medical advice, medical treatment, or diagnosis of any disease or condition.

Quitting smoking and improving your cardiovascular fitness can also improve ED without medication. That said, experts say it’s usually safe to use a PDE5 inhibitor like tadalafil to treat ED without also enrolling in therapy. The medicines aren’t addictive in a chemical sense, but it’s important to be aware of the risk of psychological dependence—believing you can’t get an erection without taking medicine first. However, if your ED comes and goes, you don’t want to take a tadalafil daily dose or aren’t sexually active more than three days a week, on-demand Cialis may be best.

IIEF scores increased by about the same amount (on average) in people who took Cialis or Viagra. Average scores for self-esteem and relationship quality were also about equal in the two groups. One study compared people who took Cialis either once a day or as needed with people who took Viagra as needed. These lists contain up to 10 of the most common mild side effects that can occur with Cialis, with Viagra, or with both drugs (when taken individually). As with any drug, never change your dosage of Cialis without your doctor’s recommendation.

Both Cialis and Viagra belong to a group of medications called phosphodiesterase 5 (PDE5) inhibitors. Occasional episodes of ED are typical and could be due to causes such as work stress, relationship troubles, or excessive alcohol consumption. But if you are experiencing ED at least 25 percent of the time, you should talk with a doctor. You should also discuss any minor changes in your erections or libido. It limits the effect of the PDE5 enzyme in the penis, allowing blood vessels in your penis to relax so blood can flow into the penis, helping to get or keep an erection. Keep in mind that Cialis won’t work unless you’re stimulated or aroused.

Nitric oxide then activates the enzyme guanylate cyclase, which results in increased levels of cGMP. Cyclic guanosine monophosphate causes smooth muscle relaxation in the corpus cavernosum thereby allowing inflow of blood