Multidrug intolerance in the treatment of hypertension: result from an audit of a specialized hypertension service

Author:

Okeahialam Basil N.1

Affiliation:

1. Cardiology Sub-Unit 1, Department of Medicine, Jos University Teaching Hospital, PMB 2076, Jos, Plateau, 930001, Nigeria

Abstract

Background: Hypertension as a cardiovascular disease risk factor continues to take a heavy toll on the population despite efforts with containment. Poor control, even among those on treatment, is part of the challenge and results from patient, physician and health system factors. When the problem resides at patient level, adherence is largely responsible. An entity defined as multidrug intolerance (MDI) is hardly considered. A situation when a patient is willing to adhere but is compelled otherwise could frustrate both patient and physician. Encountering a few such cases prompted the author to audit his specialized hypertension service in order to evaluate the burden of MDI and its associations. Methods: Between 7 May and 30 July 2016 (to cover a 12-week cycle which ensured all attendees were captured), all patients attending follow up for blood pressure control had their records evaluated for intolerance to three or more different classes of anti-hypertensives, which defines MDI. Their ages, sex, control state and co-morbidities were extracted from the records. Results: A total of 489 patients with hypertension were seen over the period; 271 (55.4%) of whom were women and 248 (50.7%) were uncontrolled. Overall 15 (3.1%) satisfied the definition of MDI; 10 women and 5 men. All the men with MDI were uncontrolled while 7 out of the 10 women were uncontrolled; with two having premenstrual syndrome as co-morbidity. A total of four patients (three men, one woman) had history suggesting allergy and two (one man, one woman) were on treatment for anxio-depressive illness. Conclusion: MDI does occur in sub-Sahara African patients with hypertension and should be considered before describing hypertension as resistant or considering alternative treatments including device therapy. Staggering doses or trying different formulations could be of benefit.

Publisher

SAGE Publications

Subject

Pharmacology (medical)

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