Background: Community pharmacists are strategically positioned to dispense Complementary and Alternative Medicine (CAM) products as part of their innate roles in the provision of accurate drug information to patients. This unique position of the pharmacist could be best realized if equipped with good knowledge and skills in regard to CAM products. Objectives: This study aimed to assess the readiness of community pharmacists in the provision of CAM productrelated information to patients by assessing the knowledge and determined the attitudes and practices of community pharmacists regarding CAM products in Eastern Visayas, Philippines. Methods: A descriptive mixed-method (qualitative and quantitative) survey design was utilized in this study. Community pharmacists (n=58) in Eastern Visayas, Philippines were the research participants in the study. The survey questionnaire constituted four sections: socio-demographic profile, attitudes, practices, and knowledge of community pharmacists on CAM products. Descriptive statistical analysis was performed using SPSS Version 20. Results: Results revealed that the majority of respondents are female (87.93%), age range in between 21-30 (62.07%), working full-time (79.31%), and bachelor’s degree holder (98.28%). More than half of the participants (53.45%) did not receive any education or training on CAM products during undergraduate studies. Community pharmacists displayed strong positive attitudes (mean=3.74) and had a moderate frequency of practice on CAM products (mean=3.20). The knowledge test revealed that only a few of the community pharmacists (31.03%) were considered knowledgeable. A significant relationship between years of work experience in community pharmacy and knowledge was found in this study. Conclusion Despite having strong attitude and moderate level of practice, community pharmacists in Eastern Visayas showed a low level of knowledge on CAM products. Demand for CAM products by patients encouraged community pharmacists to dispense and provide information. Readiness of community pharmacists in terms of knowledge provision of CAM product-related information to patients were found to be insufficient while a moderate level of practice towards CAM products was reported. Community pharmacists displayed a strong positive attitude towards CAM products. Overall, the community pharmacists are not ready to provide CAM information service in the context of the knowledge, attitude, and practices.
Complementary Therapies ; Medicine, Traditional ; Philippines

Objectives: The stratum corneum (SC) remains an obstacle to the passage of drugs applied topically. Several investigations have focused on enhancing the penetration of drugs through the SC by integrating permeation enhancers (PE) into the drug formulation. Terpenes are among the PE utilized in formulations and are categorized by the regulatory bodies as generally recognized as safe (GRAS). This study aimed to comparatively analyze the skin permeation enhancing effect of terpenes on lipophilic drugs. Methods: The present study reviewed the effects of terpenes on the permeation of lipophilic small-molecule drugs through the skin using original research published between 2000 - 2022 retrieved from PubMed®. The search phrase used was (lipophilic drug) AND (terpene) AND (permeation enhancer). Results: Terpenes increase the percutaneous permeation of lipophilic small molecule drugs by 1.06 – 256.80-fold. Linear correlation analysis of terpenes’ cLog P with enhancement ratio (ER) revealed moderate and strong positive correlations in pig skin (r = 0.21) and mouse skin (r = 0.27), and rat skin (r = 0.41) and human skin (r = 0.67), respectively. Drug cLog P is a poor (r = -0.06) predictor of permeation enhancement. Terpenes with cLog P higher than 2.40 had ER greater than 10. Higher ERs (>30) were recorded for nerolidol, carvacrol, borneol, terpineol, limonene, menthone, pulegone, and menthol among the terpene-chemical penetration enhancers. Conclusion cLog P of terpene-based chemical permeation enhancers (CPE) is strongly correlated with ER of lipophilic drugs across human skin. Non-polar groups in terpenes and hydrogen bond interactions by terpenes with SC lipid enhance cutaneous drug penetration of lipophilic drugs.
Terpenes ; Skin