Nephrotoxicity: Bacitracin in parenteral (intramuscular) therapy may cause renal failure due to tubular and glomerular necrosis. Its use should be restricted to infants with staphylococcal pneumonia and empyema when due to organisms shown to be susceptible to bacitracin.
Precursor Skills to Sitting Up: 1  1. Holding baby in upright postures with support. 2  3. Play time on his back â This is a good way for baby to begin to strengthen the muscles on the front of their body (the flexors) 3  4. Rolling â Strengthens the muscles of his trunk as they work together with coordination.
What to do if your baby doesn't sit up. If your baby isn't able to hold his head up steadily by the time he's about 4 months old and hasn't started learning to prop himself up on his arms shortly after that or is unable to sit unsupported by 9 months, check in with his doctor.