Does prednisone cause a metallic taste in the mouth?
Yes, prednisone can cause a metallic taste in the mouth, known medically as dysgeusia. This side effect occurs in some patients taking the corticosteroid, often described as a persistent metallic or bitter flavor.[1][2]
How common is this side effect?
Reports vary, but metallic taste affects 1-10% of prednisone users in clinical data. It's more noticeable with higher doses or longer use, like in treatments for asthma, allergies, or autoimmune conditions.[1][3]
Why does prednisone cause it?
Prednisone alters taste buds and saliva production, possibly by affecting zinc levels or nerve signals in the mouth. It impacts the steroid-responsive cells in taste receptors, leading to altered perceptions of flavors.[2][4]
How long does the metallic taste last?
It typically starts within days of beginning treatment and fades 1-2 weeks after stopping prednisone, as the drug clears the system (half-life about 18-36 hours). Persistent cases may need medical review.[1][3]
What can you do to manage it?
- Rinse mouth with salt water or baking soda solution.
- Chew sugar-free gum or suck on lemon drops to stimulate saliva.
- Stay hydrated and avoid strong flavors that worsen it.
Consult a doctor before changing doses; they might adjust or switch steroids.[2][4]
Are there other taste-related side effects?
Prednisone more commonly causes dry mouth (xerostomia) or bitter taste, which can compound metallic sensations. Rarely, it leads to loss of taste (ageusia).[1][3]
When should you see a doctor?
If the taste persists beyond stopping the drug, worsens, or accompanies swelling, rash, or breathing issues, seek care—it could signal allergy, infection, or zinc deficiency.[2][4]
[1]: Mayo Clinic - Prednisone side effects
[2]: Drugs.com - Prednisone side effects
[3]: MedlinePlus - Prednisone
[4]: WebMD - Corticosteroids side effects