I took the non-drowsy Claritin, with the active ingredient loratadine. It is not listed as interacting with cyclosporine. However, as you pointed out, it is another burden on the liver and kidneys.
52 yo female, dx 9/08, AA/hypo-MDS, subclinical PNH, ATG/CsA 12/08, partial response. Tried slow cyclosporine taper over 4+ years. Platelets fell, so back on cyclosporine. Trisomy 6 clone in 5% of cells.