The use of cepharanthine in your cycle should not likely cause any forseeable affect on muscle growth if Talos is taken as directed. While NSAIDs may possibly affect muscle growth when used chronically, cepharanthine is not an NSAID and you're not likely to use it for an extended period of time. There is no clinical data at this time on the effect cepharanthine itself it may have as per muscle growth, but based on the mechanism of action, the most it would have would be a rather negligible effect if cepharanthine were to be used chronically- but even then, if there were to be even the slightest effect on muscle growth, the benefits of using Talos would far outweigh the possibility of that minute effect on muscle growth (especially when you're using anabolics). More research should be done in that department (but likely won't happen) and would probably take years of chronic use to show some retardation of muscle growth. Thank you for your inquiry and be sure to let me know if you have any other questions.