Antibiotics like ceftriaxone injection wholesaler may not always work for bacterial infections due to several reasons. Antibiotic resistance occurs when bacteria evolve to evade drugs, often from overuse or misuse. Incorrect diagnosis, such as mistaking viral infections for bacterial ones, leads to ineffective treatment. Inadequate dosing or incomplete treatment courses can allow bacteria to survive and develop resistance. Biofilm formation, where bacteria form protective layers, can also reduce antibiotic efficacy. Additionally, some bacteria naturally resist certain antibiotics. Ensuring accurate diagnosis, proper antibiotic selection, and completing prescribed courses are critical to improving treatment success and combating resistance effectively.