Erythromycin a macrolide antibiotic

Classes of antibiotics include the following:

Aminoglycosides
Carbapenems
Cephalosporins
Fluoroquinolones
Glycopeptides and lipoglycopeptides (such as vancomycin)
Macrolides (such as erythromycin and azithromycin)
Monobactams (aztreonam)
Oxazolidinones (such as linezolid and tedizolid)
Penicillins
Polypeptides
Rifamycins
Sulfonamides
Streptogramins (such as quinupristin and dalfopristin)
Tetracyclines
Carbapenems, cephalosporins, monobactams, and penicillins are subclasses of beta-lactam antibiotics, a class of antibiotic characterized by a chemical structure called a beta-lactam ring.

Other antibiotics that do not fit into the classes listed above include chloramphenicol, clindamycin, daptomycin, fosfomycin, lefamulin, metronidazole, mupirocin, nitrofurantoin, and tigecycline.

****Now which ANTIBIOTIC was losing potency against what /parasite?****
------LET ME GET THIS STRAIGHT------
YOU DOCTORS CAN GIVE ME THIS 10$ ANTIBIOTIC BUT NOT THE 5$ BOTTLE OF FLURO CLORO QUININE CIPROFLOXIN EYEDROPS OR YOU LOSE YOUR JOB RIGHT?