According to the FDA (Food and Drug Administration), many of these products sold on the internet contain potentially harmful compounds. And they aren’t listed on the label. In an investigation, the FDA found that one-third of these online supplements were laced with undisclosed ingredients. This includes sildenafil—the active ingredient in Viagra. Doctors prescribe Viagra to some patients, but it’s not safe for everyone. The drug could interact with other medications and lower your blood pressure to dangerous levels. This makes ordering supplements online risky. You don’t know whether they contain sildenafil or other ingredients that could harm your health. 


What are the alternatives to viagra? Erectile dysfunction, when a man cannot achieve or maintain an erection, is a common condition that causes much distress. Viagra is just one of several drug treatments that can help relieve the problem. Other methods and treatments can help, too, including alternative herbal remedies that people may wish to try. Read now
Energy-boosting goji berries have been used for thousands of years in Chinese medicine to help increase energy and enhance the release of hormones. Goji increases the body’s ability to handle stress and support healthy mood, mind and memory—all while giving you the get-up-and-go energy needed to get your workout to the next level,” says Dr. Lindsey Duncan, celebrity nutritionist (he’s worked with Tony Dorsett and Reggie Bush). “Goji is also beneficial for increasing blood flow, which helps to oxygenate all of the cells and tissues of the body, which increases your drive—that’s why they call goji the ‘Viagra of China.’”
Dan practices a unique blend of conventional and holistic medicine, drawing on his extensive experience with integrative techniques like healing touch, guided imagery and yoga. By fostering an understanding of the deep connections between body, mind and spirit, Dan seeks to help every patient unlock his or her own innate healing ability. He received his MD from the Hahnemann College of Medicine and completed his residency in family practice through UCSF. Dan is a fellow of the Wilderness Medical Society, is a clinical instructor at UCSF, and is certified with both the American Board of Family Medicine and the American Board of Holistic Medicine. Dan is a One Medical Group provider and sees patients in our San Francisco offices.
ED is caused by vascular, hormonal, neurogenic, pharmacological, or psycho-genic factors. Performance anxiety where the person fears failing in a sexual scenario is a common psychogenic cause for ED.3 Neurogenic causes are related to diseases like Alzheimer's, Parkinson's, stroke or spinal cord injuries. Radical removal of the prostate (also called prostatectomy) is the cause of nerve-related ED as nerve injury is possible despite advances in surgical methods.4

Erectile dysfunction can occur as a side effect of medication taken for another health condition. Common culprits are high blood pressure meds, antidepressants, some diuretics, beta-blockers, heart medication, cholesterol meds, antipsychotic drugs, hormone drugs, corticosteroids, chemotherapy, and medication for male pattern baldness, among others.
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