Drinks with catchy names like Sexpresso and Rock Hard are drawing attention from a watchdog group.

The Food Standards Australia New Zealand (FSANZ) issued a warning on Monday, saying the “sex drinks” contained traces of a drug similar to Viagra.  While the active ingredient in Viagra is not listed on the label, the watchdog group is telling consumers to stay away from them.

“Consumers who are using this product should stop taking it immediately and speak to a doctor if they are experiencing side effects.”

The group has run some preliminary tests and say they have found trace amounts of Viagra, now authorities are stepping in to do some more testing.

The two instant coffees are advertised much like a ‘sex life pick me up.’  They promise men “harder, longer, stronger erections” within minutes of drinking the coffee and they claim it can last for up to six hours.

FSANZ warns the side effects are unknown since Viagra, or any substance like it, cannot be added to food or drink.

“Like any drug this can interact with prescription medicines and may be dangerous, particularly for people with certain health conditions,” a FSANZ alert reads.

“I’ve actually tried this coffee,” Patricia Lowell said.  This house wife decided she wanted to spice up her sex life with her husband so they ordered the drinks online and tried them out.  “Who doesn’t want to feel a little sexy and have a little fun?”

Lowell says she didn’t feel any adverse side effects, but she admits she has only tried the drink once or twice.  “I  really liked it, but that said I didn’t know I was drinking a small amount Viagra, that is a little freaky.”

The drinks, which are popular in Australia, have been pulled off the shelves until more testing can be done.