Drinkers of the “natural” energy drink MosKa, may have gotten more than they bargained for after taking a couple of sips. The marketed “natural” libido booster, containing “performance enhancing” ingredients such as Red and Siberian Ginseng, was banned in Australia after testers found it contained a higher than prescribed dose of an unlisted ingredient — vardenafil (Levitra) — an erectile dysfunction drug. The energy drink has presented several health risks for men, including experiencing prolonged erections.

“Vardenafil (Levitra) is a prescription only substance. As such, we have terminated the supplier and in the process of producing the product with our own formulation to ensure no hidden ingredients. All our future products will be tested for compliance with all regulations,” read a notice on MosKa’s website. The Therapeutic Goods Administration (TGA), Australia’s regulatory agency for medical drugs and devices, has issued a safety advisory for all consumers, warning the energy drink should not be taken, and it is now illegal in the country.

Although there may be some men who do not consider an erection an undesirable side effect, consuming the energy drink could lead to a dangerous medical problem — priapism. The condition causes the penis to remain erect for longer than four hours, and it can even cause permanent harm. MosKa can also lead to impotence in rare cases or bring on a heart attack — dangerous for men with angina, or very high blood pressure.

Men who have purchased MosKa and still have their supply in Australia are advised to discard the product immediately. If these bottles are found at the border by Customs and Border Protection, they will be seized and destroyed, said the TGA advisory.