Most of us have taken antibiotics to treat infections, whether for a nasty bug, a bad scrape, or after surgery. We tend to trust doctors’ recommendation, however, new data about the alarming side effects of a class of antibiotics called fluoroquinolones makes it clear they should only be used as a last resort.

Fluoroquinolones are a class of broad-spectrum antibiotics commonly prescribed for infections of the kidneys, urinary tract, sinuses, and respiratory tract.

Known by names such as Cipro (ciprofloxacin), Cipro XR, Proquin XR, Levaquin (levofloxacin), Floxin, Noroxin, Avelox, Factive, and certain generics, any drug ending in “floxacin” is in this class.

The side effects — sometimes called “getting floxed” — are so severe, the Food and Drug Administration warns to avoid taking this family antibiotics unless there is absolutely no another option.

Fluoroquinolones increase risk of tendinitis and tendon rupture

While fluoroquinolones are known for various side effects, one that may come as a surprise is increased risk of tendinitis and tendon ruptures.

Fluoroquinolones have been shown to weaken and disrupt the underlying structure of tendons. Researchers propose the following causes:

• A boost in levels of enzymes that damage soft […]