Ciprofloxacin
"This drug has destroyed my Achilles Tendon. Be warned not to take it as this could happen to you too. It is not a 'rare' side effect and tens of thousands more more reliving with this effect. It is time they took this drug off the market. So many people online are affected with permanent injuries from this drug and it's sister medications, Avelox and Levaquin. Cipro and it's sister medication are shown to cause Collage and Tendon destruction and 'mitochondrial toxicity' in research. Avoid. Losing my ability to work. This means huge financial losses for me and my young family."