RE. Chrysotherapy in psoriatic arthritis: efficacy and toxicity compared to rheumatoid arthritis. Arthritis Rheum. 1978;21:513-515. 6. Richter MB, Kinsella P, Corbett M. Gold in psoriatic arthropathy. Ann Rheum Dis. 1980;39:279-280. 7. Dequeker J, Gevers G. An open study on the efficacy and safety of auranofin in treating psoriatic arthritis. Scand J Rheum. 1986;2(suppl 63):85\x=req-\ 95. 8. Carette S, Calin A, McCafferty J, Wallin B, et al. A double-blind placebo-controlled study of auranofin in patients with psoriatic arthritis. Arthritis Rheum. 1989;32:158-165. 9. Naranjo CA, Busto U, Sellers EM, Sandor P, et al. A method for estimating the probability of adverse drug reactions. Clin Pharmacol Ther.
PsoriasisTo the Editor.\p=m-\Our studies of the effect of the histamine2 (H2) receptor antagonist, ranitidine, in patients with trauma-and blood transfusion-induced immunosuppression, in patients with multiple myeloma, and in patients with human immunodeficiency virus infection,1 have included a few patients with psoriatic lesions. Some of these patients who were treated with the active drug showed improvement in psoriatic disease, but with recurrence within a few weeks after the therapy was discontinued. Based on these observations, and despite previous randomized, placebo-controlled studies of short-term treatment (28 days) with another H2 receptor antagonist, cimetidine, which had shown no beneficial effect,2 an open pilot study of the effect of long-term (4 months) treatment with ranitidine in patients with different forms of psoriasis was initiated.