BackgroundStudies have shown that training interventions fail when proper strategies are not in place for their implementation. The study described the implementation strategies used in the delivery of the HIV test services (HTS) and measured implementation outcomes in the delivery of the services.MethodsThe study was conducted between August and November 2019 among 50 selected community pharmacies in Oyo State, Nigeria using a mixed-method quantitative and qualitative data survey design. The implementation strategies and activities used in the delivery of HTS in the pharmacies and during outreaches were described while both observational and survey methods were used to collect data. Implementation outcomes were measured and analysed in terms of penetration, adoption, acceptability, feasibility, fidelity, and appropriateness of the intervention.ResultsPenetration among respondents was 90%. Acceptability of the HTS was high (77.3%) among clients 20–49 years of age with 919 clients participating in the HIV screening. While 919 HIV tests were conducted, only 19 (2.1%) were positive. Adherence to the protocol of delivery of HTS (fidelity) indicated that all the respondents conducted rapid HIV testing, pre-testing counselling (43, 95.6%), post-testing counselling (40, 88.9%), and provision of confidential test results (39, 86.7%). Respondents’ responsiveness indicated that 23 (51.1%%) of the respondents could use up to 80% and above of the test strips given within the period. Researchers’ observations showed respondents’ ability to perform the tests as intended with little challenges. Participants felt that rendering the services was an interesting experience, and fulfilling, and allowed them to improve on their professional deliverables and practice. It also showcased the relevance of pharmacists in rendering HTS, creating awareness of the menace of HIV/AIDS, and helping people to stop the spread.ConclusionThe study showed that HTS is acceptable, appropriate, feasible, and easy to adopt in community pharmacies and penetration was high. For sustainability, community pharmacists should be well remunerated, and need for an established policy to include this scope in community pharmacy practice.