Antibiotics can be life-saving in many instances, but The Doctors issue a strong warning against taking antibiotics meant for your pets, especially the type used for fish.

ER physician Dr. Travis Stork shares the unfortunate fact that some people are resorting to taking the medication in order to treat their own ailments.

Watch: Is the Antibiotic You're Taking Dangerous?

"These are designed to be dissolved into fish tanks for specific purposes and absorbed through the fish's skin," he says, explaining that some people purchase the medications, like amoxicillin, ciprofloxacin, and penicillin, and take on their own.

"You're taking some random concoction of fish antibiotics," he continues.

Watch: Common Antibiotics with a Dangerous Side Effect?

The Doctors note there can be side-effects when taking medications not meant for you, especially ones meant for animals and they note that these antibiotics are not regulated in the way that human antibiotics are.

The Doctors recommend speaking with your healthcare provider before taking an antibiotic and they reiterate to only take medications meant for humans.