Which antibiotics and anticoagulant have reported incompatibility or loss of activity with the Hospira UK Ltd tobramycin 40mg/ml injection product?

For the Hospira UK Ltd tobramycin 40mg/ml injection product, incompatibility or activity loss is reported with some cephalosporins, penicillins and heparin sodium; clindamycin phosphate solutions in glucose injection are unstable, and the product must not be physically premixed with other drugs but administered separately at the recommended dose and route.