Yellow pill bottles, like most prescription medication bottles, are usually made from plastic, and whether they are recyclable depends on the type of plastic used.  The common types used for these bottles are Polypropylene (PP) and High-Density Polyethylene (HDPE), which are recyclable and marked with recycling codes #5 and #2, respectively.  Many recycling programs accept these plastics, but it's essential to check with your local recycling facility first. If recycling isn't an option, consider repurposing the bottles for other uses. Before doing either, remove labels and clean the bottles thoroughly.  Ensure to verify with your local recycling center for the most accurate information as recycling practices can differ.