Table 3.

Frequency of use of photosensitizing medications for total study population listed by pharmacological class.

Drug type	Frequency
Antimicrobials
Tetracyclines (e.g. tetracycline, doxycycline)2	123
Sulfonamide antibiotics (e.g. trimethoprim/sulfamethoxazole)2	47
Fluroquinolones (e.g. ciprofloxacin)2	7
Cardiovascular
Antihypertensives
Thiazides (e.g. hydrochlorothiazide, including combination medication such as hydrochlorothiazide/triamterene)2	239
Loop diuretics (e.g. furosemide)2	46
Calcium channel blockers (e.g. diltiazem2, nifedipine)	44
Potassium-sparing diuretics (e.g. triamterene)	29
Alpha-adrenergic agonists (e.g. methyldopa)	3
Other
Antiarrhythmics (e.g. amiodarone, quinidine)2	11
Sulfonylureas (e.g. glipizide, glyburide)	3
Chemotherapeutics
Antimetabolite (e.g. methotrexate)2	8
Antiestrogen (e.g. tamoxifen)2	6
Nonsteroidal anti-inflammatory drugs (NSAIDs)
Salicylic acid derivatives (e.g. acetylsalicylic acid)2	623
Proprionic acid derivatives (e.g. ibuprofen, naproxen)2	432
Acetic acid derivatives (e.g. nabumetone)2	4
Enolic acid derivatives (e.g. piroxicam)	4
Psychiatric medications
Benzodiazepines (e.g. alprazolam, diazepam)	112
Tricyclic antidepressants (e.g. amitriptyline)	13
Retinoids
Topical (e.g. tretinoin)2	72
Oral (e.g. isotretinoin)2	12

¹Photosensitizing medications were not listed in this table if only 1 or fewer usages.

²In addition to being photosensitizing, these drugs are also classified as having phototoxic effects.