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Updated: Sep 5, 2025

Quadruple-Checkerboard: A Modification of the Three-Dimensional Checkerboard for Studying Drug Combinations
Published on: July 24, 2021
Physician's knowledge, attitude and practice of fixed drug combinations: Can we recognize the lacunae?
Alok Singh1, Suryaprakash Dhaneria1, Dhyuti Gupta1
1Department of Pharmacology, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India.
Objective:
The Indian pharmaceutical market is flooded with different fixed drug combinations (FDCs), many of which lack a rational justification. The study aimed to assess the knowledge, attitude, and practice (KAP) regarding FDCs among the physicians of a tertiary-care teaching center.
Method:
The target sample size for this cross-sectional study was calculated as 75, and the study was conducted between February and August 2020 by using a content-validated questionnaire. Descriptive statistics had been utilized for data analysis, and Chi-square test had been applied for intergroup comparison (with P < 0.05 considered to be significant).
Results:
The mean age of the physicians who participated in this survey was 33.2 years. While 44% of them could identify all the potential advantages of using FDCs, only 09% could correctly recognize all the disadvantages associated with the same. Among the list of rational and irrational FDCs, only 49% could single out the irrational ones. And though the majority (83%) of the respondents do check for the rationality of FDCs before prescribing them, still out of 25 most commonly prescribed FDCs, 16 lacked any scientific justification for combination, and 09 (out of 16) had been banned by the Government of India.
Conclusion:
The outcome of this cross-sectional questionnaire-based study reflects the deficit in the knowledge regarding FDCs, as well as incoherence among the knowledge, attitude, and prescription practice. Though the physicians have cultivated a healthy attitude towards prescribing FDCs, the same is not reflected in their practice. In order to rectify these disparities, the authors have proposed certain recommendations within this article.
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