Background Psoriasis is a chronic inflammatory and systemic disease that primarily affects the skin, nails, and joints. Some medications have been linked to worsening clinical manifestations of cutaneous psoriasis. Objective To identify pharmacological treatments and drugs related to worsening dermatological lesions in patients with psoriasis. Setting Patients diagnosed with psoriasis or psoriatic arthritis between November 1, 2018, and October 30, 2019. Methods This was a cross-sectional study from a population database that identified the prescriptions of patients with psoriasis during 2019. All medications prescribed for the treatment of psoriasis and other comorbidities were investigated. Main outcome measure Potentially inappropriate medications. Results We identified 2088 patients with psoriasis, with a mean age of 53.6 ± 15.5 years, and 52.9% were men. A total of 92.6% received pharmacological treatment, and of these, topical corticosteroids were the most commonly used group (76.6%). A total of 55.3% of patients with cutaneous psoriasis received at least one drug associated with worsening dermatological lesions. The most frequent were naproxen (25.5%), diclofenac (14.7%), and dexamethasone (10.8%). Residing in Barranquilla (odds ratio 1.27, 95%confidence interval 1.009-1.607), having any chronic comorbidities (odds ratio 1.94, 95%confidence interval 1.566-2.402), and having a history of coronary heart disease (odds ratio 6.25, 95%confidence interval 1.895-20.645) increased the probability of receiving these prescriptions. Conclusions The pharmacological treatment of psoriasis was in accordance with the recommendations of the clinical practice guidelines, but the high proportion of potentially inappropriate prescriptions makes it necessary to promote educational and pharmacovigilance strategies that improve the formulation habits of the physicians involved in the treatment of these patients.
Keywords: Colombia; Immunosuppressive agents; Myocardial ischemia; Naproxen; Pharmacoepidemiology; Psoriasis; Psoriatic arthritis.