What is a carrier molecule's role in drug delivery systems?

The role of a carrier molecule in drug delivery systems is primarily to transport drugs to specific sites in the body. This function is critical in ensuring that therapeutic agents reach their intended targets while minimizing side effects and enhancing the overall efficacy of the treatment. Carrier molecules can take various forms, such as liposomes, nanoparticles, or even proteins, each designed to improve the solubility, stability, and cellular uptake of the drug.

By facilitating targeted delivery, these carriers help to ensure that the drug is released at the right location and at the right time, maximizing therapeutic effects while reducing the exposure of non-target tissues to the drug, which is especially important in treatments for conditions like cancer or chronic diseases. This targeted approach can lead to improved patient outcomes and fewer adverse reactions compared to conventional drug delivery methods.