Can I take prednisone (oral corticosteroid) with Zyrtec (cetirizine)?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board
Educational purpose only • Exercise caution as content is pending human review
Article Review Status
Submitted
Under Review
Approved

Last updated: April 7, 2025View editorial policy

Personalize

Help us tailor your experience

Which best describes you? Your choice helps us use language that's most understandable for you.

From the Research

Yes, you can generally take prednisone (an oral corticosteroid) together with Zyrtec (cetirizine, an antihistamine). These medications work differently in the body and are often prescribed together, particularly for allergic conditions. Prednisone reduces inflammation and suppresses immune responses, while Zyrtec blocks histamine receptors to relieve allergy symptoms like sneezing and itching. There are no significant drug interactions between these medications that would prevent taking them together. However, you should always take prednisone exactly as prescribed, including following any tapering schedule if given for a short course. Prednisone is typically taken with food to reduce stomach irritation, while Zyrtec can be taken with or without food. If you're taking these medications for allergies, the combination may provide better symptom relief than either medication alone. Despite their general compatibility, it's always best to inform your healthcare provider about all medications you're taking to ensure they're appropriate for your specific health situation.

Key Considerations

  • Prednisone can cause osteoporosis, especially with long-term use, as noted in a study from 1.
  • A more recent study from 2 highlights the importance of managing corticosteroid-induced osteoporosis, suggesting that glucocorticoids should be prescribed at the lowest dose and shortest duration, and that patients should be counseled on lifestyle measures to maintain bone strength.
  • Another study from 3 compares the effects of daily oral steroids versus weekly oral pulse steroids on bone mineral density and suprarenal suppression, finding that weekly oral pulse therapy may be an alternative option for long-term oral steroid therapy with less significant bone loss and suprarenal suppression.
  • It's also worth noting that certain medications, like montelukast, have been found to inhibit osteoclast formation and bone loss, as seen in a study from 4, although this is not directly related to the interaction between prednisone and Zyrtec.

Recommendations

  • Always follow the prescribed dosage and schedule for both prednisone and Zyrtec.
  • Inform your healthcare provider about all medications you're taking.
  • Consider lifestyle modifications to maintain bone strength if you're taking prednisone long-term, as suggested by 2.
  • Be aware of the potential for osteoporosis with prednisone use and discuss preventive measures with your healthcare provider.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

Have a follow-up question?

Our Medical A.I. is used by practicing medical doctors at top research institutions around the world. Ask any follow up question and get world-class guideline-backed answers instantly.