The National Park Service has issued a warning that could be toad-ally terrifying.

Recently, the NPS sent out a message on their social media page asking residents and visitors to stop licking the Sonoran desert toad. Yes, you read that correctly.

The Sonoran desert toad (Bufo alvarius), also known as the Colorado river toad, is one of the largest toads found in North America, measuring nearly 7 inches and is found in Arizona, New Mexico and in Mexico.

These toads have prominent parotoid glands that secrete a potent liquid hallucinogenic toxin. It can make you sick if you handle the frog or get the poison in your mouth.

Licking the toad could cause a rapid heart rate, muscle weakness, and vomiting. This toad is also dangerous for your pets as eating the Sonoran desert toad can be deadly for dogs.

People have been known to smok the toad’s toxin, 5-MeO-DMT. The process involves drying it into a paste or powder and results in drug induced trips that have been known to distort time, vision and sound. It is important to note that this type of toxin does not serve any type of medical purpose and has notable high potential for addiction. The Sonoran Toad is registered as threatened in New Mexico due to roadway mortalities, habitat loss, and over collection for drug use.

The toad has smooth, olive, brown or gray skin and makes a low-pitched toot noise.