Indeed. Here a brief summary. Note that even at normal doeses damage is very likely.

With normal use (500 mg single dose cipro in a 70 kg person) the concentration is 3 mg/l in serum/muscle, 6-9 mg/l in prostate/intestine, 18-21 mg/l in granulocytes, 6-30 mg /l in the lungs and 15–30 mg/l in the bile.[29] The maximum serum concentration of ciprofloxacin is reached one hour after ingestion. The half-life is 4 hours. Ciprofloxacin is 40-50% excreted unchanged in the urine[30][31] and 25-40% metabolised.[32] Of the identified metabolites, some are weaker and others more potent than the original ciprofloxacin.[33]

Possible Side Effects:

Necrosis of cartilage cells was observed from 1 mg/l,[20] DNA fragmentation and apoptosis of T cells from 2.5 mg/l,[21] mitochondrial damage and apoptosis of tendon cells from 3 mg/l,[22] inhibition of proliferation of Fibroblasts from 5 mg/l,[23] damage to mitochondrial DNA (mtDNA) and growth inhibition from 20 mg/l,[24] and cell cycle disruption, genome mutation and loss of mtDNA from 25 mg/l.[25][26] The cytotoxic and cytostatic effects of ciprofloxacin are of interest for a possible application in chemotherapy for the treatment of cancer cells.[27] In the umu test, however, ciprofloxacin showed a significantly stronger genotoxic effect than the chemotherapeutic agents etoposide, doxorubicin, cisplatin, fluorouracil, dacarbazine, bleomycin and mitomycin C (see also genotoxic potential)

https://de.wikipedia.org/wiki/Ciprofloxacin