Reported causes of psoriasiform drug eruptions

Common

Psychoactive drugs (lithium)

Antihypertensives (beta blockers)

Antimalarials (chloroquine, hydroxychloroquine, quinidine)

Nonsteroidal anti-inflammatory drugs, antibiotics (tetracycline)

Uncommon

Tumor necrosis factor inhibitors (infliximab, adalimumab, etanercept, certolizumab pegol)^[1,2]

Antifungals (terbinafine)^[3]

Rare

Antihypertensives (clonidine)

Antiarrhythmics (digoxin, amiodarone)

Antiseizure medications (carbamazepine, valproic acid)

Psychoactives (fluoxetine)

Antihypertensives/diuretics (captopril, chlorthalidone, diltiazem, nifedipine, nicardipine,^[4] acetazolamide)

Antibiotics (penicillin, amoxicillin, ampicillin)

Opioids (morphine)

Anesthetics (procaine)

Antihistamines (cimetidine, ranitidine*)

Heavy metals (gold, mercury)

Hormonal agents (oxandrolone, progesterone)

Fibrates (gemfibrozil)

Antithyroid (potassium iodide)

Cytokines/cytokine inducers (GM-CSF, imiquimod)

GM-CSF: granulocyte macrophage colony-stimulating factor.
* Ranitidine has been withdrawn from the United States market.

References:

Wollina U, Hansel G, Koch A, et al. Tumor necrosis factor-alpha inhibitor-induced psoriasis or psoriasiform exanthemata: first 120 cases from the literature including a series of six new patients. Am J Clin Dermatol 2008; 9:1.
Cullen G, Kroshinsky D, Cheifetz AS, Korzenik JR. Psoriasis associated with antitumour necrosis factor therapy in inflammatory bowel disease: a new series and a review of 120 cases from the literature. Aliment Pharmacol Ther 2011; 34:1318. doi:10.1111/j.1365-2036.2011.04866.x.
Gupta AK, Sibbald RG, Knowles SR, et al. Terbinafine therapy may be associated with the development of psoriasis de novo or its exacerbation: four case reports and a review of drug-induced psoriasis. J Am Acad Dermatol 1997; 36:858.
Kitamura K, Kanasashi M, Suga C, et al. Cutaneous reactions induced by calcium channel blocker: high frequency of psoriasiform eruptions. J Dermatol 1993; 20:279.

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