Vardenafil (Levitra) is almost 10 times more biochemically potent than sildenafil, therefore a lower dose is needed to facilitate the penile erection, potentially resulting in less side effects. Selectivity is the ability of the drug to attach to the specific enzyme PDE 5 found in penile tissues.
Cialis has comfortably the longest effectiveness period of any erectile dysfunction drug on the market.
So to answer the above question, no, Viagra would not necessarily give a stronger erection than Cialis, and vice versa. However, Cialis will last longer and can help achieve one or more erections for up to 36 hours. This is considerably longer than Viagra, which is typically effective for 4-6 hours.
Using them incorrectly — having the wrong dosage or not following instructions — can cause Cialis not to work. Cialis might also fail if your ED is related to psychological issues — performance anxiety, intimacy issues, low self-confidence and depression can all affect your erections.
Three of the most popular erectile dysfunction drugs on the market are sildenafil (active ingredient in Viagra®, generic Viagra), vardenafil (Levitra®) and tadalafil (Cialis). These are all first-generation treatments for ED that were introduced in the 1990s and early 2000s.
Speak with your healthcare provider about a different dose
If Viagra isn't working for you, you might need a higher dose. But don't experiment on your own: Always speak with a healthcare provider about dosage changes and never take more than one dose of Viagra in any 24 hour period.
Recent studies have found that exercise, especially moderate to vigorous aerobic activity, can improve erectile dysfunction. Even less strenuous, regular exercise might reduce the risk of erectile dysfunction. Increasing your level of activity might also further reduce your risk.
Viagra helps to maintain the erection after ejaculation and reduces the refractory time before a second erection can be obtained. These medications may be combined with various creams aimed at reducing sensitivity.
Naturally, Stendra is often compared to older medications used to treat ED, such as Viagra®. As a newer medication, Stendra offers a range of advantages over older medications for ED, from a lower risk of causing side effects to its quicker absorption into the body.
Common physical causes of erectile dysfunction include heart disease, diabetes, nerve damage and high blood pressure. Hormonal issues, such as low testosterone, can also affect your level of sexual desire, which may stop you from getting an erection even with Viagra.
Penile implant. A penile implant involves a 30- to 45-minute surgical procedure that places a water-based device into the erection chambers of the penis, which enables you to reliably control exactly when and how long an erection lasts. Dr. Starke says this is the closest option to a cure that exists for ED.
The highest recommended Viagra dose for treating erectile dysfunction (ED) is 100 mg per day, according to the drug's manufacturer. Doses of 150 mg or 200 mg would be considered off-label use.
Effectiveness of all PDE5 inhibitors is similar; although reported effectiveness of Viagra, at 84% is slightly higher than that of Cialis at 81%. However, more men prefer Cialis because of its longer duration of effect.
When used in women, Viagra is thought to raise blood flow to the genitals so that there's more sensitivity and stimulation. Studies have shown that Viagra may provide a benefit for women having difficulty with sexual arousal — since it may help them respond better to sexual stimulation.
We know that Viagra works in men by increasing the blood flow to the penis. In women it's thought that Viagra could increase blood flow to the female genital area, increasing lubrication and aiding orgasm.
Pfizer, the company that manufactures this drug, has confirmed that the typical Viagra user is on average 53 years old. The company does not keep records of users younger than 33 years. The drug should not be used in young men who do not have erection problems.
It relaxes the smooth muscles and arteries inside the penis. At the same time, it increases blood flow to the penis. When aroused, this combination of relaxation and increased blood flow allows the penis to fill with blood, which results in an erection. Good to know: Cialis only works if you're sexually aroused.
Is There a Way To Tell if a Man is Taking Viagra? Wondering if your man is taking a pill to keep up his energy in bed? You could check his medicine cabinet, send an email to his doctor asking what prescription drugs he's on, or have his blood tested.
Viagra does not stimulate you sexually, it can only help you get an erection once you're already aroused. Because Viagra only helps you to get an erection by improving blood flow to the penis, it doesn't force you to get an erection, so it won't work unless you're sexually stimulated.