Half of the men in the study (50%) were able to complete sexual intercourse in more than 75% of attempts. A comparison of all the above mentioned parameters (NPT, hormone profile and the Florida Sexual Health Questionnaire) before and after yohimbine supplementation clearly showed that men who had milder erectile dysfunction showed improvement while those with severe erectile dysfunction failed to show much improvement.
Erectile dysfunction supplements and other natural remedies have long been used in Chinese, African and other cultures. But unlike prescription medications for erectile dysfunction, such as sildenafil (Viagra), vardenafil (Levitra, Staxyn), tadalafil (Cialis, Adcirca) and avanafil (Stendra), erectile dysfunction herbs and supplements haven't been well-studied or tested. Some can cause side effects or interact with other medications. And the amount of the active ingredient can vary greatly from product to product.
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