A Study on Factors Influencing Purchase of OTC analgesic drugs

  • Dr. N.Thamaraiselvan Natarajan, K.Priya verthini Kanagarathinam


Purpose– Emphasis on the purchase of nonprescription drugs. The aim of this research paper is to predict the factors influencing the purchase of nonprescription drugs adopting Theory of Reasoned Action(TRA), among Indian customers.

Design/Methodology/Approach – Partial Least Square Structural Equation Modeling was adopted to evoke responses from the public by employing a convenience sampling approach. The researcher mostly met the respondents at their work places.Totally, 450 questionnaires were distributed and 417 responses were received.

Findings – Over-The-Counter (OTC) analgesic drugs’ television advertisements, attitude towards buying OTC analgesic drugs added with subjective norms and past experience are vital for affecting purchase intention among consumers in developing nations. Health-related variables act as a negative factor in influencing purchase attitudes.

Originality/value– Purchase of OTC drugs has been significantly increasing along with the change in perceptions of public. Analysis regarding age group, gender, attitudeandexperiencecanprovideadistinctiveunderstandingregarding OTC.Thiswouldhelpmanagers to segment OTC pharmacy market accordingly and implement strategies to influence their attitudes and intentions in developing pharma markets likeIndia.

Implication – Health-related variables do not influence drug purchase directly. Additionally, health conscious people fear using OTC analgesic drugs. The television advertisements of OTC analgesic drugs have a positive impact on consumers’ attitude. Therefore, television advertisements must convey that the usage of OTC drugs does not result in side effects. Secondly, based on past experience, we can predict that only 12% of the consumers had not used OTC analgesic drugs even once. This communicates that people generally do not intend to buy medicines. However, they use OTC drugs in case of pain and suffering. Consequently, we can predict the upcoming growth of medicines in developing countries. Therefore, advertisers can work without segmenting people,because a healthy and health conscious individual tends to use OTC analgesic drugs.

Limitation – The present study emphasizes only on analgesic drugs andthe actual purchase behavior was not analyzed.


The present study adds knowledge to the existing literature. It employs the Theory of Reasoned Action (TRA) to predict the intention regarding the purchase of Over-The-Counter (OTC) analgesic drugs. The variables adopted were price, past experience, attitude towards television advertisements of OTC analgesic drugs. Some health-related factors like health consciousness, health status, and involvement with drugs were contributed to the pilot model to predict the attitude and intentions of the public. Convenient sampling method was adopted by using a questionnaire.Partial Least Square Structural Equation Modeling approach was used to select a sample of 418 respondents for the analysis. Gender and Age were utilized as moderators for all relationships. The study outcomes reveal that attitude towards television advertisements of OTC analgesic drugs and past experience are vitalfor foretelling the consumers’ purchase intentions. TRA is used as the basis by attitude and subjective norms for predicting intention. Gender and age do not play a substantial role in moderating the purchase intention relationships. Attitude, past experience and subjective norms significantly influence purchase intention.

How to Cite
Dr. N.Thamaraiselvan Natarajan, K.Priya verthini Kanagarathinam. (2020). A Study on Factors Influencing Purchase of OTC analgesic drugs. International Journal of Advanced Science and Technology, 29(08), 5087-5110. Retrieved from https://sersc.org/journals/index.php/IJAST/article/view/26842