Could Prednisone Be Causing Your Anxiety and Panic Attacks?

I had a patient in his twenties come in recently after a bachelor party weekend. Multiple emergency department visits over the past few days. Racing heart. Chest tightness. Shortness of breath. Suddenly convinced he was dying. But the emergency department team told him they couldn’t find anything wrong with him.

So I asked, calmly:

“Did you get into any cocaine? Or anything else this weekend?”

He said yes.

Pause.

“Prednisone.”

Not cocaine. Not ecstasy. Not some mystery substance at 2 a.m.

And clinically, that made far more sense. I see this scenario every few months.

When panic appears suddenly after a high-energy weekend, substances are high on the differential. But prednisone is one of the most common — and most under-recognized — triggers of abrupt anxiety I see.

It’s prescribed constantly. Asthma flares. Sinus pressure. Allergic reactions. Autoimmune disease. Primary care, urgent care, ER, specialists. It works extremely well for inflammation. It’s listed in the World Health Organization List of Essential Medicines.

It also reliably turns up the nervous system. That’s a side effect that often flies under the radar for prescribers. 

Prednisone increases cortisol signaling — that’s your primary stress hormone. More cortisol means more vigilance, more arousal, more sympathetic activation. Some people describe it as energy. Others describe it as feeling “amped.” Once sleep drops — and steroids are notorious for insomnia — the threshold for panic falls quickly.

Then come the physical sensations:

• Palpitations
  
  
• Tremor
  
  
• Sweating
  
  
• GI activation
  
  
• Restlessness
  
  

If you’re even mildly anxiety-prone, that combination can spiral. The body feels like it’s in danger, and the brain constructs a story to match.

Clinically, it can look identical to Panic Disorder:

• Sudden surges of fear
  
  
• Chest pressure
  
  
• Shortness of breath
  
  
• Fear of losing control
  
  
• Repeated ED visits with normal workups
  
  

The timing is everything. If symptoms begin shortly after starting prednisone or increasing the dose, the medication moves high on the list.

There’s another layer that’s important — but not something to sensationalize. In sensitized individuals, particularly those with bipolar spectrum vulnerability, family history of mood disorders, or significant sleep disruption, steroids can do more than cause anxiety. They can lower the threshold for hypomanic symptoms: decreased need for sleep, racing thoughts, irritability, impulsivity. Rarely, especially at higher doses, more significant mood or perceptual disturbances can emerge.

That’s uncommon — but real.

The mechanism makes sense. Corticosteroids affect the HPA axis, glutamate transmission, dopamine regulation, and sleep architecture. In other words, they don’t just calm inflammation. They alter central nervous system excitability.

Most patients won’t develop mania or psychosis. Many will develop some degree of activation. A meaningful minority will experience significant anxiety. The risk increases with higher doses and longer exposure.

The reassuring part is that steroid-induced anxiety is usually dose-related and reversible. The solution is typically not “you now have a chronic anxiety disorder.” It’s:

• Do not stop abruptly — steroids require tapering.
  
  
• Contact the prescribing clinician.
  
  
• Consider dose reduction if medically appropriate.
  
  
• Protect sleep aggressively.
  
  
• Reduce caffeine, other stimulants, and alcohol.
  
  

In my patient’s case, I gave him a few days of Ativan and sent him to bed.

His nervous system was simply overstimulated.

Sometimes when panic appears out of nowhere, the explanation isn’t psychological. It’s pharmacological.

And occasionally, the “drug exposure” from the bachelor party isn’t what happened Saturday night.

It’s the prescription that followed on Monday.