Velcade Medication Guide: Subcutaneous Injection Site Rotation, Intravenous Push Injection Time, and Leakage Management
Velcade (bortezomib) can be administered by subcutaneous injection or intravenous bolus; proper technique and handling of missed doses directly affect efficacy and safety.
I. Subcutaneous Injection Site Rotation
1. Recommended Sites
Prefer the subcutaneous tissue of the thighs or abdomen.
Avoid the periumbilical area, scars, ecchymoses, indurations, and broken skin.
2. Rotation Principles
Change the injection site each time; do not repeat injection at the same site within a short period.
Alternate between left and right sides and upper and lower areas to reduce local reactions.
Inject into the subcutaneous depth, with the needle inserted perpendicularly or at a slight angle, avoiding inadvertent entry into a blood vessel.
3. Management of Local Reactions
If redness, swelling, induration, or pain occurs, record it and avoid that area.
If local reactions persist or worsen, inform the doctor for evaluation.
II. Intravenous Bolus Administration Time
1. Administration Method
Intravenous administration is a rapid bolus, not a prolonged infusion.
The bolus is usually given over 3 to 5 seconds, via either a peripheral or central vein.
2. Key Operational Points
Confirm that the intravenous access is patent before bolus administration to avoid extravasation.
Flush with normal saline after the bolus to reduce irritation from residual drug.
Extravasation can cause local irritation; stop immediately and manage it.
3. Distinction from Subcutaneous Administration
The dose and concentration differ between subcutaneous injection and intravenous bolus and must not be mixed up.
Use the route prescribed by the doctor; do not change the administration method on your own.
III. Handling of Missed Doses
1. Basic Principles
Do not double the dose after a missed dose.
Take the next dose according to the original dosing schedule.
2. Interval Requirements
At least 72 hours must elapse between two doses.
If less than 72 hours remain until the next dose, skip the missed dose.
3. Recording and Communication
Record the time and reason for the missed dose and inform the healthcare team.
Frequent missed doses may affect efficacy and require reassessment of the dosing plan.
IV. Precautions
1. Pre-Dose Assessment
Confirm complete blood count, platelet count, and symptoms of neuropathy.
Dose adjustment is required if severe peripheral neuropathy or thrombocytopenia occurs.
2. Patient Education
Patients receiving subcutaneous injections should master site rotation methods.
Intravenous administration must be performed by professionals; patients should not self-administer bolus injections.
Seek timely medical attention for injection site abnormalities, numbness or tingling, or signs of infection.
Disclaimer：《Velcade Medication Guide: Subcutaneous Injection Site Rotation, Intravenous Push Injection Time, and Leakage Management》Edited and sorted by Seagull Pharmacy's editors. Please contact us in time if there is any infringement. In addition, the suggestions for drug usage, dosage and disease mentioned in the article are only for medical staff's reference, and can not be used as any basis for medication！