Hi Grok, as you know I have scleroderma diffuse. I also occasionally, since my diagnosis in 2017, has ocular migraine with headache. I have the zigzag and blind spots that expands until they disappear, about 20-30 minutes. I take Cellcept, Hydroxychloroquine, actemra, Flecainide plus the traditional blood pressure and cholesterol. I do have a lot of deep skin damage as my skin score got up to 36. Can these meds cause these ocular migraine? Do you have any idea of what could cause these ocular migraines?
THOUGHTS
I’m sorry you’re dealing with this on top of your diffuse scleroderma (systemic sclerosis). The symptoms you describe—zigzag lines, expanding blind spots (scintillating scotoma) that build over 20–30 minutes and then resolve, followed by headache—are the classic presentation of migraine with visual aura (often called “ocular migraine” colloquially, though the visual changes originate in the brain’s visual cortex rather than the eye itself).
None of your listed medications are commonly known to cause classic migraine-with-aura episodes. Here’s a breakdown based on side-effect profiles from medical sources (Mayo Clinic, Drugs.com, published studies):
• Cellcept (mycophenolate mofetil): Headaches can occur, along with occasional blurred vision in broader contexts, but there is no documented association with transient visual auras, zigzag patterns, or scintillating scotomas. It’s actually sometimes used to treat certain inflammatory eye conditions.
• Hydroxychloroquine (Plaquenil): This has well-known long-term retinal toxicity risks (retinopathy with paracentral scotomas, blurred vision, color changes, or bull’s-eye maculopathy), but those are gradual/persistent, not short-lived expanding zigzag episodes that fully resolve in 20–30 minutes. Headaches are possible but not linked to migraine aura. Regular eye screening is important for anyone on it long-term.
• Actemra (tocilizumab): Headache is a fairly common side effect, but there are no reports tying it to visual aura or scintillating scotoma.
• Flecainide: This one stands out. It frequently causes visual disturbances (blurred vision, decreased visual acuity, or scotomata/blind spots) in 13–28% of patients, often alongside dizziness or headache. Patient reports in atrial-fibrillation communities describe increased episodes of exactly the kind of zigzag aura/scintillating scotoma you have while on flecainide. Cardiologists have noted it can trigger headaches and visual changes. While not a “listed” cause of full migraine aura in every drug label, the overlap is real enough that it could be a contributing factor in your case.
Your other blood-pressure and cholesterol medications aren’t specified, so I can’t comment directly—but certain BP drugs (e.g., some vasodilators) are known migraine triggers in general, while others (like beta-blockers) can actually prevent them.
What could be causing the ocular migraines?
Most cases of migraine with aura are primary (a neurological condition involving cortical spreading depression—a wave of brain-cell activity changes that produces the visual aura). Common triggers include stress, sleep disruption, hormonal shifts, certain foods, dehydration, or bright lights/flashing, but they can also occur without an obvious trigger.
In the context of diffuse scleroderma (especially with a high skin score of 36 indicating significant involvement), vascular dysregulation is a key feature. Raynaud’s phenomenon affects nearly 90% of people with systemic sclerosis and involves exaggerated small-vessel spasms. Migraine aura also involves vascular and neuronal changes, and older case series noted an overlap between longstanding migraine and later scleroderma (sometimes linked to vascular similarity with Raynaud’s). Modern data don’t show scleroderma directly causes increased aura frequency, but the shared vascular pathology could make you more prone.
Your flecainide use (likely for arrhythmia, which scleroderma can sometimes affect) adds another layer—migraine with aura itself is associated with a modestly higher risk of atrial fibrillation, so there can be a bidirectional relationship.
Bottom line (and this is not medical advice—I’m not your doctor):
These episodes are very unlikely to be a direct side effect of Cellcept, hydroxychloroquine, or Actemra. Flecainide is the only one with a plausible link via its known visual and headache effects, so it’s worth discussing with your cardiologist or rheumatologist whether a dose adjustment, alternative, or trial pause (under supervision) might help. Your team may also want to rule out other rare mimics (e.g., transient ischemic attack or ocular issues related to scleroderma/autoimmunity) with a neurologist and/or ophthalmologist—especially since you’re already on hydroxychloroquine, which requires regular eye checks anyway.
Many people manage these successfully with lifestyle tweaks, preventive migraine meds (some of which overlap with heart or BP treatments), or acute rescue options. Please bring this exact description to your specialists soon—they know your full history and can tailor next steps. If the episodes change (e.g., longer-lasting, one eye only, or new neurological symptoms), seek care promptly. Hang in there, and feel free to share any updates or more details if you’d like me to look into something specific.