Yes. 2 FDA-approved labels for Vincristine Sulfate carry a boxed warning, and its subject is caution, this preparation should be administered by individuals experienced in the administration of vincristine sulfate.... A boxed warning is the most serious warning the FDA requires on a prescription label. It is applied to the drug and to the situations in which it is used, not to any particular person taking it.
What the warning says
Below is how the Vincristine Sulfate warning opens on one specific label, identified underneath it. All 2 Vincristine Sulfate labels sampled carried this same wording, which is unusual: most drugs show several.
WARNINGS Caution–This preparation should be administered by individuals experienced in the administration of Vincristine Sulfate Injection. It is extremely important that the intravenous needle or catheter be properly positioned before any vincristine is injected. Leakage into surrounding tissue during intravenous administration of Vincristine Sulfate Injection may cause considerable irritation. If extravasation occurs, the injection should be discontinued immediately, and any remaining portion of the dose should then be introduced into another vein.
VINCRISTINE SULFATE, Hospira, Inc., label version effective 30 December 2025. Opening of the warning; read the full label on DailyMed.Why this one is unusually consistent
There is no single official text of a boxed warning. The FDA sets what a warning must cover and each manufacturer writes its own label within that, so most drugs carry several different wordings of the same warning. Vincristine Sulfate does not: all 2 labels sampled for this page used the wording quoted above, word for word.
That usually means the warning is short and settled, with little room to paraphrase, or that the labels descend from a common source. For a reader it has one practical consequence: unlike most drugs in this section, a Vincristine Sulfate refill from a different manufacturer should carry warning text that reads the same as the last one.
Vincristine Sulfate is dispensed under 2 current FDA labels despite this warning, which is the point worth holding onto: a boxed warning is a disclosure requirement, not a verdict. What a boxed warning does and does not mean sets out the distinction.
Common questions
Does Vincristine Sulfate have a black box warning?
Yes. 2 FDA-approved labels for Vincristine Sulfate carry a boxed warning, and its subject is caution, this preparation should be administered by individuals experienced in the administration of vincristine sulfate.... A boxed warning is the strongest warning the FDA requires on a prescription label, and it is applied to the drug, not to any individual taking it.
What does the Vincristine Sulfate boxed warning say?
The wording is set by each manufacturer within FDA requirements, so it varies. In the version quoted on this page, taken from a label effective 30 December 2025, the warning concerns caution, this preparation should be administered by individuals experienced in the administration of vincristine sulfate.... The full text is linked so the exact version can be read rather than summarised.
Does the Vincristine Sulfate boxed warning mean the drug is unsafe or being withdrawn?
No. It means the FDA requires the risk of caution, this preparation should be administered by individuals experienced in the administration of vincristine sulfate... to be communicated prominently so prescribers weigh it explicitly. Vincristine Sulfate remains FDA-approved and is dispensed under 2 current labels. A boxed warning is a disclosure requirement, not a judgement that a drug should not be used.
Will a Vincristine Sulfate refill from another manufacturer show different warning text?
Probably not, and that makes it unusual. Each manufacturer writes its own label within the FDA's requirements, so most drugs carry several wordings of the same warning. All 2 Vincristine Sulfate labels sampled here used identical wording, so the text on a refill should read the same as the last one.
Should I stop taking Vincristine Sulfate because of this warning?
This page does not answer that and cannot. The warning about caution, this preparation should be administered by individuals experienced in the administration of vincristine sulfate... is written for a prescriber deciding whether Vincristine Sulfate suits a particular patient, and stopping a prescribed medicine carries its own risks that this page knows nothing about. Raise it with the prescriber or a pharmacist, who can see the whole picture.
Where this page's information comes from
The quotation above is from one Vincristine Sulfate label, linked below by its DailyMed set identifier so the exact version can be opened rather than taken on trust. The figure of 2 labels, and the count of 1 distinct wordings among 2 sampled, were computed from the openFDA labelling API on 30 August 2026.
- VINCRISTINE SULFATE prescribing information, Hospira, Inc., effective 30 December 2025.
- openFDA drug labelling API, the source of the label counts and variant counts on this page.
Labels are revised over time. The version linked above is the one this page was written against, and a newer revision may differ. Counts reflect the labels present in openFDA on the retrieval date.