What the FDA labels say about taking them together
Dantrolene and succinylcholine
Succinylcholine's FDA label of August 18, 2026 names dantrolene in its warnings and precautions section; the dantrolene labels PlainMeds reads (3) do not name succinylcholine.
Check it at the source: the dantrolene FDA label on DailyMed (effective August 21, 2026, Par Health USA, LLC); the succinylcholine FDA label on DailyMed (effective August 18, 2026, Hospira, Inc.).
What does the dantrolene label say about succinylcholine?
Dantrolene's label (effective August 21, 2026) and its 2 other brand-application labels do not name succinylcholine in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (dantrolene sodium), Par Health USA, LLC, effective August 21, 2026 (SPL set 11689f56-15e0-4350-b53f-ae96e5994fea), via openFDA; the full label on DailyMed
What does the succinylcholine label say about dantrolene?
Succinylcholine label, warnings and precautionsMalignant Hyperthermia: Malignant hyperthermia may occur, especially in individuals with known or suspected susceptibility based on genetic factors or family history. Discontinue triggering agents, administer intravenous dantrolene sodium, and apply supportive therapies.
Anectine label (Sandoz Inc, November 29, 2023), warnings and precautionsDiscontinue triggering agents, administer intravenous dantrolene sodium, and apply supportive therapies ( 5.5 ).
Source: FDA drug label (Anectine, NDA008453), Sandoz Inc, effective November 29, 2023 (SPL set a1e5d29f-111e-4a44-addf-beeb6ea81711), via openFDA
Source: FDA drug label (QUELICIN), Hospira, Inc., effective August 18, 2026 (SPL set fb08161e-7711-406d-e7b3-ea4515c07983), via openFDA; the full label on DailyMed
These are the labels' own sentences. PlainMeds does not grade interactions; a pharmacist or prescriber can say what they mean for one person's medicines.
Both medicines on the record
| Dantrolene | Succinylcholine | |
|---|---|---|
| Labeled for | Muscle spasms and spasticity | n/a |
| Boxed warning | Yes | Yes |
| Pharmacy cost (NADAC) | $0.409 per capsule 25 mg capsule | n/a |
| Shortage now | No current entry | A presentation being discontinued |
Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)
What next?
- Check more medicines together
- up to five at once