Can you freeze it?
I looked this up and found a report from the US Defense Dept. who had the FDA to study shelf life of medicines and they specifically tested and reported on Cipro in this report. This is part of what they said about Cipro, plus I put the link below so you can read the whole report. Lower down in the report, they store these meds in a cool room but not a freezing temperature. The idea is to keep out moisture, and freezing might include moisture as a cool temp. wouldn't.
In this quote, you will see Cipro has a very long shelf life if kept cool.
“Caouette said an example of one of the drugs with an extended shelf life is ciprofloxacin. ‘It’s a broad spectrum antibiotic that’s used to treat many different bacterial infections, and also happens to be a medicine that can be used to combat biological warfare.’”
“The military has large quantities of this drug. So much so, in fact, that the manufacturer will not agree to take back the drug for credit when it expires, as they do for civilian users. ‘So rather than wasting it, we’ve put that product into our shelf-life extension program and have the FDA conduct the testing to see how long we can use that material past the labeled expiration date,’ he said. In the case of ciprofloxacin, the original expiration date was 1993. With the testing the shelf life has been extended to 2001 and further testing may extend it further.”