Standard Wear Time for Sancuso Patch
Apply the Sancuso (granisetron transdermal system) patch 24 to 48 hours before chemotherapy starts. Keep it on during the entire chemotherapy treatment and for at least 24 hours after the last dose. The total wear time is up to 7 days per patch.[1][2]
When to Remove It Exactly
Remove the patch no sooner than 24 hours after your final chemotherapy dose ends, but no later than Day 8 (7 full days after application). If your chemo regimen spans fewer than 5 days, still leave it on for the minimum 24 hours post-chemo.[1][2]
What If Chemo Runs Longer or Shorter?
For multi-day chemo up to 5 days, one patch covers the full course plus 24 hours after. Multiple patches aren't recommended for a single cycle—consult your doctor for extended regimens. Replace only if it falls off or irritates skin early.[1][2]
Patch Placement and Removal Tips
Apply to clean, dry, intact skin on the upper outer arm. Press firmly for 30 seconds. Remove by peeling slowly from the edge; fold in half and discard safely (out of kids/pets' reach). Skin may redden temporarily—wash area gently.[1][2]
Common Patient Questions on Duration
Patients often ask about showering (patch is water-resistant) or accidental early removal (reapply a new one if less than half remains attached). Don't cut or reuse patches. Track your schedule: e.g., apply Day -1, chemo Days 1-3, remove by Day 4 evening at earliest.[1][2]
[1] Sancuso Prescribing Information, https://www.sancuso.com/
[2] FDA Label for Sancuso, https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/021753s009lbl.pdf