SOUTH African pharmaceuticals group Adcock Ingram Ltd said on Wednesday it plans to use some of its surplus cash to buy back its own shares “in a meaningful amount”. The group said in a statement it currently holds about R1-billion in cash, some of which it believes could best be used to repurchase some of its “N” ordinary shares. It said this move will have a favourable effect on its earnings per share in future years. Adcock said the repurchase will only begin after the release of its annual financial results on October 29.