The company behind the "male" enhancement supplements X-Rock and Z-Rock has announced a recall of both products. The recall was prompted, CRM Laboratories says, because tests on the supplements turned up the drugs sildenafil and hydroxythiohomosildenafil.
Sildenafil is better known by its trade name Viagra while hydroxythiohomosildenafil is a drug analogue of it. Both of these ingredients--which are NOT disclosed on the supplements' labels--pose a health risk to men. This is because men who know they shouldn't take erectile dysfunction drugs like Viagra or Cialis will often turn to over-the-counter supplements like these, believing them to be safe, drug-free alternatives.
But these are not, of course, drug-free and both of the drugs found in the products can interfere with other medications. For men taking nitrates this could be especially dangerous because the interaction could result in a sudden and life-threatening drop in blood pressure.
Additionally, both of the "spiked" ingredients can cause side effects on their own.
Affected by this recall are all packages of X-ROCK 3 Day Pill For Men and Z-ROCK with date codes falling between October 2011 and April 2012. All date codes within that range are covered, regardless of any other manufacturing codes the packages may bear. All package sizes are covered, as well.
The official websites for these supplements, XRockHim.com and ZRockUSA.com, are currently offline. From what I can tell, though, both of the products were hawked as "natural" supplements.
Both Z-Rock and X-Rock were peddled through the internet as well as retail stores nationwide. If you have any of this stuff on hand you are, of course, urged not to use it. If you have taken it and think you've suffered an adverse event you're encouraged to seek medical attention and then file a complaint with the FDA's MedWatch program. (Your doctor can help you do that.)
In its press release, CRM Laboratories says it "sincerely regrets" the inconvenience. There was no explanation given for exactly how or when the apparent spiking occurred.