Initial uptake in use of Sildenafil in General Practice

David Williams, J. Feely

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Objective: To assess the initial uptake in use and co-prescribing patterns of sildenafil.

Methods: We examined prescription details of the Eastern Health Board Region (including Dublin) of the General Medical Services (GMS) in Ireland, which provides detail on prescriptions dispensed in primary care for this population (n = 334,031). We identified 1422 patients who received 3740 prescriptions for sildenafil over a 6-month period (July 1999-December 1999) and determined the percentage of patients who were co-prescribed nitrate therapy, medications which may interact with sildenafil and medications associated with impotence.

Results: We identified 1422 (1.4% of the male population over 16 years who might be expected to suffer from erectile dysfunction given an overall prevalence of 10%) who received a prescription for sildenafil over the study period at a cost of 0.14% of the annual drug budget. Up to 2.5%, 6% and 25% of patients were co-prescribed, respectively, nitrate therapy, potentially interacting drugs and drugs associated with impotence.

Conclusion: The initial uptake and cost associated with sildenafil was lower than expected. The rate of prescribing of nitrates and other potentially interacting medications was found to be low. Medication use may also contribute to erectile dysfunction in this population of patients.

Original languageEnglish
Pages (from-to)911-914
Number of pages3
JournalEuropean Journal of Clinical Pharmacology
Volume56
DOIs
Publication statusPublished - 2001

Keywords

  • pharmacoepidemiology
  • sildenafil
  • general practice
  • ERECTILE DYSFUNCTION
  • VIAGRA
  • DISEASE
  • MEN

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