Can You Take Sudafed with Glaucoma?
No, people with glaucoma should avoid Sudafed (pseudoephedrine). It can raise intraocular pressure, worsening glaucoma symptoms or triggering acute attacks, especially in angle-closure cases.[1][2]
How Does Sudafed Affect Glaucoma?
Pseudoephedrine is a decongestant that constricts blood vessels. In glaucoma, this mydriatic effect (pupil dilation) can block fluid drainage from the eye, spiking pressure. Open-angle glaucoma patients face lower risk, but narrow-angle types are most vulnerable—Sudafed may provoke an emergency.[1][3]
What Do Doctors and Guidelines Say?
The American Academy of Ophthalmology warns against oral decongestants like Sudafed for glaucoma patients. Labels on Sudafed products list glaucoma as a contraindication. Ophthalmologists often advise checking with a doctor first, as individual eye anatomy varies.[2][4]
Safer Alternatives to Sudafed
Opt for saline nasal sprays, oral antihistamines (like loratadine), or steroid-free nasal corticosteroids (e.g., Flonase). If congestion persists, ipratropium sprays avoid systemic effects. Always confirm with your eye doctor or pharmacist.[1][3]
What If You've Already Taken It?
Monitor for blurred vision, eye pain, halos around lights, or nausea—these signal acute glaucoma. Seek emergency care immediately. A single dose rarely causes permanent harm in stable open-angle glaucoma, but avoid repeats.[2]
Sources
[1]: American Academy of Ophthalmology - Decongestants and Glaucoma
[2]: FDA Sudafed Label
[3]: Glaucoma Research Foundation - Medications to Avoid
[4]: Mayo Clinic - Pseudoephedrine Precautions