Hi there
Cipro is a nitemare down tubes, it's the grains in the liquid.
To unblock the tube, put about 30 ml of warm water in a 60cc syringe and fix it to the tube and use the syringe like you would a toilet plunger. It may take a while but keep going. You may need to draw back on the syringe to remove some of the blockage.
After a good 5 mins of this, give the tube a good flush applying abit of pressure and it should go. You can use fizzy water as this helps break up the blockage too.
If left too long the medicine can dry up and harden and then you may need a hospital visit so they can put their special rods in to shift it.
To prevent cipro doing this again, ensure you give a really good flush before, shake the bottle for at least a minute before drawing it up and then give immediately. If you are still anxious about this you could just give a small amount, flush, abit more flush etc
Ensure you give a really good flush afterwards. Via the tube is the only way we can give Sophie her meds and she was on cipro for a long time and this way worked for us.
Good luck and hope you get/got the blockage shifted.
xx