<prompt> Which of the following are the features of phenytoin toxicity:Gum hyperophyAcne rosaceaExacerbation of acne vulgarisLoss of hair  <response>: Gum hyperophy: Commonest more in younger age b Hirsutism, coarsening of facial fea :-..:: c troublesome in young girls, acne. REF: KD TRIPATIH 8TH ED. 