Drug-Induced Photosensitivity: Medications That Cause Light Sensitivity

What Is Drug-Induced Photosensitivity?

Drug-induced photosensitivity occurs when a medication makes your skin or eyes abnormally sensitive to sunlight or UV light. This is one of the most common — and most preventable — causes of photosensitivity.

Common Photosensitizing Medications

Antibiotics

• Doxycycline — one of the most common culprits
• Tetracycline — the entire tetracycline class
• Ciprofloxacin and other fluoroquinolones
• Sulfonamides (Bactrim, sulfasalazine)
• Doxycycline photosensitivity →

Retinoids

• Isotretinoin (Accutane) — significant photosensitivity
• Tretinoin — topical retinoid
• Adapalene — milder but still photosensitizing
• Accutane photosensitivity →

Psychiatric Medications

• SSRIs — sertraline, fluoxetine, paroxetine (mild risk)
• Antipsychotics — chlorpromazine, quetiapine
• Mood stabilizers — lamotrigine, carbamazepine

Cardiac & Blood Pressure Medications

• Hydrochlorothiazide (HCTZ) — very common diuretic
• Amiodarone — antiarrhythmic with blue-gray skin discoloration
• Nifedipine — calcium channel blocker

NSAIDs

• Naproxen — higher photosensitivity risk than other NSAIDs
• Piroxicam — significant photosensitivity
• Ketoprofen — particularly with topical application
• Ibuprofen — rare but documented

Other Medications

• Metformin — mild photosensitivity in some patients
• Prednisone / corticosteroids — can thin skin, increasing UV vulnerability
• Methotrexate — immunosuppressant with photosensitizing potential

Types of Reactions

Phototoxic (Most Common)

• Occurs within hours of sun exposure
• Looks like an exaggerated sunburn
• Dose-dependent — higher medication dose = greater risk
• Resolves when medication is stopped

Photoallergic (Less Common)

• Immune-mediated reaction
• May take 1–3 days to appear
• Itchy, eczema-like rash
• Can persist after medication is discontinued
• May spread to non-sun-exposed areas

How to Protect Yourself

1. Check medication labels — look for photosensitivity warnings
2. Apply broad-spectrum SPF 50+ daily when on photosensitizing medications
3. Wear protective clothing — long sleeves, wide-brimmed hat
4. Avoid peak sun (10 AM – 4 PM)
5. Don’t stop medications without consulting your doctor
6. Sunscreen for photosensitivity →

When to Talk to Your Doctor

Contact your prescribing physician if you:

• Develop an unexpected skin reaction after sun exposure
• Experience worsening light sensitivity after starting a new medication
• Need to spend significant time outdoors while on a photosensitizing drug
• Want to discuss alternative medications with lower photosensitivity risk

Never stop a prescribed medication without medical guidance. Your doctor can help weigh the benefits against the photosensitivity risk.

Sources

1. Blakely KM, et al. “Drug-induced photosensitivity—an update.” Drug Safety. 2019;42(7):827-847.
2. Gould JW, et al. “Cutaneous photosensitivity diseases induced by exogenous agents.” J Am Acad Dermatol. 1995.
3. Moore DE. “Drug-induced cutaneous photosensitivity.” Drug Safety. 2002;25(5):345-372.