<prompt> The group of antibiotics which possess additional antiinflammatory and immunomodulatory activities is -TetracyclinesPolypeptide antibioticsFluoroquinolonesMacrolides  <response>: Ans. is d i.e., Macrolides The antibiotic which possesses additional immunomodulatory activities is Tacrolimus. Tacrolimus belongs to the macrolide groups of antibiotics and hence is the answer here. 