HER2 Support Group Forums - View Single Post - After Chemo how long does it stay in system

Becky · 07-23-2013, 02:48 PM

Chemo does not last long in your system. It depends on the drug but it is usually gone in 24-48 hours. Herceptin does hang around long. When you get your last infusion, a tiny itty bitty bit is around for months. The half life of Herceptin is 25 days so half is gone in 25 days and so on and so on.

07-23-2013, 02:48 PM	#3
Becky Senior Member Join Date: Sep 2005 Location: Stockton, NJ Posts: 4,179	Re: After Chemo how long does it stay in system Chemo does not last long in your system. It depends on the drug but it is usually gone in 24-48 hours. Herceptin does hang around long. When you get your last infusion, a tiny itty bitty bit is around for months. The half life of Herceptin is 25 days so half is gone in 25 days and so on and so on. __________________ Kind regards Becky Found lump via BSE Diagnosed 8/04 at age 45 1.9cm tumor, ER+PR-, Her2 3+(rt side) 2 micromets to sentinel node Stage 2A left 3mm DCIS - low grade ER+PR+Her2 neg lumpectomies 9/7/04 4DD AC followed by 4 DD taxol Used Leukine instead of Neulasta 35 rads on right side only 4/05 started Tamoxifen Started Herceptin 4 months after last Taxol due to trial results and 2005 ASCO meeting & recommendations Oophorectomy 8/05 Started Arimidex 9/05 Finished Herceptin (16 months) 9/06 Arimidex Only Prolia every 6 months for osteopenia NED 18 years! Said Christopher Robin to Pooh: "You must remember this: You're braver than you believe and stronger than you seem and smarter than you think"