Hi Debi
From the research that I have done there appear to be no data regarding contraindications between rennies and cyclo. There is a slight decrease in kidney function when taking rennies should you take the full daily dose of 12 tablets so I would go easy as your kidneys will also be dealing with the toxic effects of cyclo ~ your kidneys will be working hard at the moment ! Keep glugging on water meanwhile

If in doubt consult your local pharmacist for reassurance.
Nick
