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The fact that a product is labeled as "coffee" doesn't make it automatically good. That's particularly true of a supposed male enhancement (penis-enlarging, erection increasing) product called Stiff Bull. This coffee may in fact enable men to become "stiff." The problem isn't that it doesn't work. The problem with this product is that it works because it contains a chemical compound called desmethylcarbodenafil.

What Is Desmethylcarbodenafil?
Desmethylcarbodenafil is a designer drug that was first analyzed by health regulator labs in 2010. The molecule that makes desmethylcarbodenafil is very similar to sildenafil, which is better known as Viagra. Like Viagra, this designer drug works by interfering with the action of an enzyme called cGMP-specific phosphodiesterase type 5 (PDE5), which accelerates the degradation of cGMP, which regulates blood flow in the penis. The two drugs work by making sure that blood that flows into the penis doesn't flow out, ensuring a stiffer erection during sexual excitement. They don't actually make the organ larger, but they do increase the time it can stay erect.
What's the Problem with Stiffer Erections?
The obvious problem for men who use either of the two drugs mentioned above is that blood that is "locked" in the penis isn't available to flow elsewhere in the body. Especially in men who take nitrates for high blood pressure (medications like isosorbide mononitrate, which is generic, or brand name drugs like Imzo or Imdur) or nitroglycerin for chest pain, taking desmethylcarbodenafil or sildenafil (Viagra) can result in sudden low blood pressure. This can have a variety of effects. In some cases, the man will simply need to sit down or lie down. He may still have an erection, but he won't be able to do anything with it. In other cases, the effects are more severe, and the man loses consciousness or in extreme cases dies. The combination of either Stiff Bull or Viagra with blood pressure or angina medications at the very least will keep a man from enjoying sex, and in some cases may be fatal.
READ Natural Viagra Alternatives
Is Force Factor VolcaNO Supplement a Substitute for Stiff Bull?
Some websites are promoting a product called Force Factor VolcaNO as a substitute for the male enhancement product Stiff Bull. The VolcaNO supplement is designed for enhancing muscle enlargement, not penis enlargement, but it can have a safer effect on men's erections. VolcaNO Supplement contains four amino acids that are especially important in helping muscles rebuild fibers after workouts. The body can use one of these amino acids for making a substance called NO, which helps the arteries that lead into the penis expand so the penis can become erect.
VolcaNO doesn't, however, affect the substances that keep blood from leaving the penis, and it won't cause sudden, severe drops in blood pressure. Men who want to have better erections, however, are better off seeking treatments provided by a doctor, which can be calibrated to a man's needs and won't have potentially dangerous side effects when used as directed.
- Ge X, Li L, Koh HL, Low MY. Identification of a new sildenafil analogue in a health supplement. J Pharm Biomed Anal. 2011 Nov 1.56(3):491-6. doi: 10.1016/j.jpba.2011.06.004. Epub 2011 Jun 15. PMID: 21726974.
- Infographic by SteadyHealth.com
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