People who purchased RockHard Weekend, which was marketed as a sexual enhancement supplement, may have gotten much more than they bargained for. The Food and Drug Administration announced a nationwide recall of the herbal supplement because it contains an undeclared compound (sulfoaildenafil) that is similar to the erectile dysfunction drug sildenafil (Viagra), which actually makes RockHard Weekend an unapproved drug. This drug ingredient could pose a threat to unsuspecting consumers because it can lead to dangerously low blood pressure.

The Viagra-like compound, which is not listed as an ingredient in RockHard Weekend, might interact with nitrates that are found in some prescription drugs, such as nitroglycerin. This could result in a risky drop in blood pressure.

If you have experienced any side effects from use of the supplement, consult your doctor. You can also help the FDA monitor the situation by reporting your adverse events to the agency.