Dr. Ray Sahelian says: "I have tried Viagra and Passion Rx. Viagra works very well for erections, but that's about it. I much prefer Passion Rx since, in addition to better and longer lasting erections, it naturally enhances sensation, sex drive, stamina, and overall enjoyment. Both my male and female patients love it!"

Impotence drugs currently available on the market
Viagra, Levitra, and Cialis.

A note about Viagra
Viagra (sildenafil), approved by the FDA in 1998, has been the most popular sex pill for the treatment of erectile dysfunction. Viagra works very well in dilating blood vessels in the genital region leading to an erection or increased blood flow to the vaginal tissues, however this blue sex pill does little to directly increase libido or sexual arousal. The effect of Viagra is often noticed within an hour after taking a pill of 50 or 100 mg, and ease of erection may last up to 12 hours. Side effects of Viagra include headache, flushes, nasal congestion or runny nose, malaise, nausea, changes in blood pressure, irregular heart beats, visual disturbances including rare cases of blindness, and chest pain. Viagra may cause stickiness of blood platelets. Trimetazidine, a drug that prevents heart-related chest pain, is a better choice than "nitrate" drugs, such as Nitro-DUR and Isordil, for men with heart disease who are taking Viagra (sildenafil). There have been concerns about dangerously low blood pressure when Viagra is combined with nitrates, yet many men with heart disease are currently seeking treatment for erectile dysfunction.
   I personally find natural Viagra alternatives quite effective and preferable to pharmaceutical drugs.

Viagra and fertility
Laboratory studies conducted at Queen's University Belfast, UK suggest that taking the erectile dysfunction drug Viagra may negatively affect sperm function and possibly male fertility. Dr. David R. J. Glenn and colleagues observed that exposure of cultured sperm to Viagra, compared to no exposure, led to a "sustained enhancement of motility," both in numbers of progressively motile sperm and their velocity. Exposure to Viagra -- at concentrations equivalent to the average maximum total blood concentration present 30 minutes after a single oral dose of 100 milligrams -- also caused a premature "acrosome reaction." Acrosomes are structures that cover the head of the sperm and contain a variety of enzymes that help the sperm penetrate the outer membrane of the egg. Fertility and Sterility, May 2007.

Natural Viagra Alternative Update
As many as half of the Viagra anti-impotence pills sold on the Internet could be counterfeit. British scientists analyzed samples of Viagra sold on web sites and found that some of the little blue pills contained different components or less of the active ingredient than the top-selling drug made by pharmaceutical giant Pfizer Inc.

Study links impotence drugs to eye damage risk, Optic nerve problems more likely in people with a history of heart disease
Impotence drugs such as Viagra and Cialis can increase the risk of eye damage in men who have a history of heart disease or high blood pressure. Scientists at the University of Alabama in Birmingham found that men who had suffered a heart attack were 10 times more likely to have optic nerve damage if they had been taking leading anti-impotence pills. “For patients with a history of myocardial infarction (heart attack), we did observe a strong and statistically significant association suggestive of a link between the use of Viagra and/or Cialis and an increased risk of NAION,” Dr. Gerald McGwin, who headed the study, said in a report in the British Journal of Ophthalmology. Non-arteritic anterior ischaemic optic neuropathy (NAION), is the most common cause of acute optic nerve disease in people over 50 years old. It can cause permanent loss of vision in one or both eyes. Viagra, made by Pfizer Inc and Eli Lilly and Co.’s Cialis, are leading impotence treatments. McGwin and his team questioned 76 men, half of whom suffered from NAION, who were treated at a specialist eye clinic in the United States, about their smoking and drinking habits and use of anti-impotence pills. Tens of millions of men have used Viagra and Cialis since the treatments were launched. In May, the Food and Drug Administration in the United States said it had received more than 40 reports of NAION involving impotence drugs but had not determined whether the treatments were responsible.

Warning labels
 Viagra: “Less common side effects that may occur are temporary changes in color vision (such as trouble telling the difference between blue and green objects or having a blue color tinge to them), eyes being more sensitive to light or blurred vision.”
 Cialis: “may uncommonly cause ... vision changes, such as seeing a blue tinge to objects or having difficulty telling the difference between the colors blue and green.”
 Levitra: “may uncommonly cause ... vision changes, such as seeing a blue tinge to objects or having difficulty telling the difference between the colors blue and green.”

Viagra and vision lawsuit
A Houston man filed a lawsuit in June 2005 in federal court against Pfizer, claiming he suffered blindness after taking its best-selling erectile dysfunction drug Viagra. James Thompson filed the civil suit against Pfizer in the U.S. District Court for the Southern District of Texas on Tuesday and is seeking more than $75,000 for his vision loss. He is also seeking class-action status because it has been estimated that since 1998, 23 million people have taken the erectile dysfunction drug Viagra, the trade name for sildenafil.

Natural Viagra alternative questions
Q. Would you consider horny goat weed a natural Viagra alternative?
   A. I still have not come across any single herb that is as good in enhancing an erection and a good natural Viagra alternative and quick acting except perhaps for yohimbe which has unpleasant side effects in high dosages.

Q. I,m an Italian man 70 y.o. My question is: is it possible to take Viagra together with Passion Rx ??
   A. We suggest using Passion Rx the day before, but not the same day as Viagra.

Q.  I just ordered some Passion Rx as natural Viagra alternative and had a question. I know if you are taking Viagra or something and have a heart attack they need to know you are taking it because being given nitroglyceren while taking Viagra could be fatal. Is there a similar danger with Passion Rx? I don't plan on having a heart attack but if I did do I need to tell the hospital staff I'm taking Passion Rx.
   A. We are not aware of an association between Passion Rx and nitroglycerin. Viagra is a single substance that works directly to dilate blood vessels and hence it's potential risk for problems with nitroglycerin. Passion Rx has about 2 dozen herbs and nutrients. Each herb has dozens of different substances in it.

Q. Is arginine a natural alternative to Viagra since it converts into nitric oxide?
   A. I personally do not consider arginine to be a natural alternative to Viagra since, even though it may convert into nitric oxide, the effects are short lived.

Q. I would like to buy a Viagra alternative but I am not sure which one will work for me.
   A. It is impossible to predict which herb or herbal combination is best suited for a person without trial and error. If you would like to buy a Viagra alternative, try tongkat ali, LJ100, mucuna pruriens, or better yet a combination of several herbs found in Passion Rx.

Q. Can passion Rx with Yohimbe be taken with Viagra? Can you continue to use Viagra and take Passion Rx?
   A. We suggest not taking them the same day. Passion Rx can be taken 2 days or 1 day before using Viagra, but not the same day as Viagra.

Q. Is it true that safed musli  is a Viagra alternative?
   A. We have not had a chance to test this herb yet so we don't know if it is a Viagra alternative.

Q. I am looking for a Viagra alternative. I am in good health, albeit overweight. I currently weigh about 250 and should weigh in the 215 – 220 range, based on I feel and look. medical charts for height would have me in the 185 – 190 range. Not going to happen. I was born in1944 (62 years old). At approximately age 52 I started having erectile dysfunction symptoms. I went to a clinic which was pushing growth hormones and medicines which allegedly reversed aging. Very expensive and I couldn’t afford to even try their solutions. I did get a prescription for Viagra. The Viagra has always work for me, but I have an uncomfortable feeling in my eyes (usually the right one) I worry that the Viagra could be doing permanent damage to my sight. I have in the past been noted to have borderline high blood pressure, however that symptom has not been present since I moved from Florida to El Paso. This could be a reduction in stress and it could be partly due to the medicines I am currently taking. In November 2006 I went to the emergency clinic at Fort Belvoir with what I thought was bronchitis or possibly pneumonia. As it turns out I was in Atrial Fibrillation and that was the real cause of my symptoms. In the hospital they put me on Diltiazem Inter venous to reduce heart rate. The heart self corrected out of Afib to a regular heart beat. In March 2007 the doctor I am currently seeing prescribed Zocor for my cholesterol level. Currently Meds: Coumadin (warafin) – 7.5 per day six days 10 on 7th day. Purpose is to thin blood thus preventing a possible clot in case of another Atrial fibrillation event. Diltiazem ( tiazac ) – 240 mg. which were prescribed in November after I had an fairly serious Atrial fibrillation event. Zacor – 10 mg. to lower my cholesteral. 1. I have taken Viagra in the past I get a feeling that I would describe as an uncomfortable pressure in the eyes (especially the right eye). I'm worried that this could be, or could in the future case permanent damage. The cardiologist at William Beaumont saw no danger to my heart from using Viagra. Internet research confirms his opinion. However the eye sight is a different story. Coumadin and / or Dilitiazen seems to effect my energy level and leaves me with diet considerations that don't please me. Why not just a aspirin regiment to keep the blood thin enough to reduce the odds of a clot in case of another Atrial fibrillation? Coumadin reduces my food options. Many minerals and supplements that I could take in the past have been removed. This may be the answer to the energy level issue. Zocor affects the liver. As a recovering alcoholic (sober since April 1979) I can't imagine that would be an acceptable side effect. The doctor I've been seeing says that we can monitor for damage. I'd rather come up with a stricter diet and use supplements. Can my current prescription medicines be safely replaced with natural supplements, minerals, diet etc? Is there a natural viagra alternative to use? With the current meds in my system what are the potential side effects with ED product Passion-Rx Yohimbe?
   A. We appreciate your email. However, we can't make any medical decisions for you, that is the role of your doctor. Also, we would not recommend Passion Rx for anyone who has a heart condition.

Q. I have read about Passion Rx for ED. I have also read about Viagra and the possibility of eye problems associated with it's use. The specific eye problem is NAION. Is there any data about Passion Rx and eye problems associated with it since it is an herbal product.
   A. The composition of Passion Rx is 100 percent different than Viagra or other ED drugs. There is no risk for eye damage from Passion Rx and no risk for NAION.

Q. I have a question about Passion Rx. I have read the ingredients in this product and I have seen the same ingredients in other formulas or just slightly different than Passion Rx. Now what makes this product work so well, and other products that I have tried, not work so well. The ingredients you have in this product have been around for a long time. If the ingredients are that potent wouldn’t customers try more of this product than Viagra? I am just trying to figure out what so special about this Passion Rx product.
   A. There are many factors that influence the effectiveness of a sexual enhancing product. The ingredients, whether they are just the powders or concentrated extracts, the amounts of the ingredients, the quality of the raw material, etc. Also, the product may not work well if the dosages are too high or too low. Viagra works rather quickly and many people want a quick effect and prefer a drug. Viagra only works for erection enhancement, not for sensation or libido. Passion Rx works in a more comprehensive manner and supports many aspects of the sexual response, but it does not work in an hour like Viagra. Normally it takes a few days for the full benefits to be noticed.