Supposedly "herbal and all natural" sexual enhancement tablets "Man Up Now" were found to contain sulfoaildenafil, a chemical similar to sildenafil (found in Viagra) and can bring blood pressure down in a dangerous way, the FDA (Food and Drug Administration) announced. The FDA is telling people to avoid Man Up Now capsules - if you have any, you should stop using them immediately.

The sulfoaildenafil found in the capsules can interfere with how some prescription drugs work, such as nitrates, resulting in dangerously low blood pressure, depriving the brain of vital blood and oxygen.

The capsules are sold by Synergy Distribution LLC through the internet and possibly some shops. Man UP Now comes in single, double and triple blister packs, as well as bottles containing 6, 12 or 30 capsules.

So far, no reports have come in of any undesirable side effects related to this product, the FDA wrote in a communiqué today. However, the Agency warns that companies that make claims that their sexual enhancement products are as good as prescription ones and contain prescription strength active ingredients can expose users to unpredictable risks, including injury or death.

A growing number of products sold as dietary supplements claiming to enhance sexual prowess have been detected by the FDA over the last few years. Many contain active ingredients found in FDA-approved medications, or variations of these ingredients, and can be harmful. They should not be OTC (over-the-counter) medications.

Any sexual enhancement product which is alleged to work rapidly, last several hours or days probably has FDA-approved active ingredients found in prescription drugs, or variations of them.

If you have experienced any undesirable side effect from this product you should see a doctor immediately and get rid of it, the FDA says.

Patients and doctors should report any undesirable side effects to the FDA's MedWatch Adverse Event Reporting program.

Source: FDA

Written by Christian Nordqvist