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.
Low testosterone levels
Viagra cannot replace testosterone levels, so when those levels drop too low, Viagra cannot stimulate enough blood flow into the penis to make up for the drop in hormone levels. That results in Viagra no longer working as well as it should or failing to work at all.
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.
Because 100mg is the highest dose available, you should never 'double up' on tablets or take more than one in 24 hours. Sildenafil 100mg is the highest safe dosage you can take – if it is ineffective, you should try another ED treatment.
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.
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.
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.
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.
You should see a doctor immediately if you experience any of the following symptoms after taking Viagra: An erection that will not go away. This is known as priapism, and if not treated immediately, it can cause permanent damage to your penis.
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.
If you're prescribed medication for ED and don't think it's working correctly, it's best to reach out to your healthcare provider for assistance. You may be able to improve your results by adjusting your dose, changing the way you use your medication or switching to a different treatment for ED.
Viagra doesn't start working immediately after taking it, as the medication needs time to be absorbed into your blood. For most men, it takes around 30 minutes before you start to feel the effects of Viagra. 12 minutes after – One study has shown that some men got an erection just 12 minutes after taking Viagra.
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.
If Viagra is not working for you, it may be because your dosage is too low. The usual starting dose for Viagra is 50mg, but you may be started on a lower dose of 25mg if you take certain medications. The maximum dose of Viagra that you can take is 100mg. Your doctor can prescribe a higher dose if it is safe for you.
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.
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.
Does body weight affect Viagra dosage? No, the dose of Viagra does not depend on a person's body weight. The dosage of Viagra depends on a person's age, their kidney and liver function, and the improvement of their erectile dysfunction.
It's best to avoid consuming alcohol while taking ED medications like Viagra: Not only can alcohol counteract the medication's effects, but it can also worsen side effects, like flushing and headaches. Again, talk to your healthcare provider before drinking alcohol if you're taking medications like Viagra.