The Centers for Disease Control and Prevention warns that people with mental illness can experience anxiety, depression and other mood disorders when taking an anti-anxiety drug.
The CDC has posted the statistics on its website, which was updated Monday.
The agency also has put out its latest warning on the use of anti-depressants.
A large share of people with anxiety disorders take a medication to reduce their symptoms, but the CDC says the same people can also experience symptoms of depression, anxiety and even bipolar disorder when taking these drugs.
The Centers says that people who take these medications for the first time may have an increased risk of becoming depressed, and the likelihood of developing these symptoms may be even higher if they have a history of depression or bipolar disorder.
People who take a prescription antidepressant, such as Prozac, can also have an increase in their risk of developing mood disorders.
If you or someone you know is experiencing symptoms of anxiety, see your doctor immediately, the CDC warns.
Some of the symptoms include feeling anxious, irritable, irritability, restless, irritating, irritatory, tense, restless and even panic attacks.
The symptoms are also sometimes mistaken for anxiety, and a prescription for a specific anti-epileptic drug may cause symptoms that are not really anxiety.
However, anti-psychotic medications do have some of the same symptoms.
To be clear, these drugs do not treat mental illness and are not a cure for mental illness, the American Psychiatric Association says.
It also says that anti-convulsants, such the anti-nausea drug Zoloft, do not cause mood disorders in people with depression or anxiety.
But Zolft is sometimes prescribed to people with severe depression or severe anxiety, the APA says.
Anti-anorexia drugs are prescribed to help people with weight loss.
The FDA is not aware of any cases of people using these drugs to treat mental health problems.