STRENGTHS AND LIMITATIONS OF THIS STUDY
The success of I-WOTCH was demonstrated from multiple perspectives providing an insight into the acceptability, replicability and transferability of the intervention.Enablers of, and barriers to, the tapering process were explored, both of which are valuable for tailoring of this type of intervention to the individual.This protocol-based process evaluation showed good fidelity of delivery, at least minimal compliance in 62%, and a very positive experience of the intervention, suggesting its suitability for service rollout.Although general practitioners screened patients and prescribed for tapering, their perspectives were not a part of this process evaluation but may have provided useful information for future implementation.As 95% of participants in the process evaluation were white, the reach of the study was thus limited and given interviews were 12 months after the intervention, recall bias may be a limitation.