Hi..
Elimination
Following administration of a single oral dose of 750 mg 14C-telaprevir in healthy subjects, 90% of total radioactivity was recovered in feces, urine and expired air within 96 hours post-dose. The median recovery of the administered radioactive dose was approximately 82% in the feces, 9% in exhaled air and 1% in urine. The contribution of unchanged 14C-telaprevir and the R-diastereomer of telaprevir towards total radioactivity recovered in feces was 31.9% and 18.8%, respectively. After oral administration, the apparent total clearance (Cl/F) was estimated to be 32.4 L/h with an inter-individual variability of 27.2%. The mean elimination half-life after single-dose oral administration of telaprevir 750 mg typically ranged from about 4.0 to 4.7 hours. At steady state, the effective half-life is about 9 to 11 hours.
http://www.accessdata.fda.gov/drugsatfda_docs/label/2011/201917lbl.pdf
I believe the 14-c referred to in the study is an added radioactive substance to allow tracking of the elimination. I would highly doubt the actual meds themselves are radioactive. There are better things to worry about, don't stress yourself. good luck.
The above poster is correct.The carbon was used to track half-life and elimination times.
There is no dangerous component.
Good luck with your treatment..
Will
Thank you for this usefull clarification