Many drug stores in the US (and Amazon) also sell a generic version that is cheaper. Just look for the same main ingredient as the Azo package.

Here’s an example:

Welmate Urinary Pain Relief | Urinary Tract Infection Treatment | Phenazopyridine Hydrochloride 99.5 mg | 72 Count Tablets https://smile.amazon.com/dp/B08LDX5VGT/ref=cm_sw_r_cp_api_glt_i_VN69YAJY2QZ89XCN1PKP?_encoding=UTF8&psc=1