Isoflurane and Propofol interaction
Isoflurane and Propofol: both prescribing labels describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.
Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.
What the FDA labels say
From the Propofol (Diprivan) label · effective 2025-09-10
As with other sedative medications, there is wide interpatient variability in DIPRIVAN dosage requirements, and these requirements may change with time.
Opioids, Sedatives or Other Analgesic Agents : May increase the anesthetic/sedative and cardiorespiratory effects.
The concurrent administration of potent inhalational agents (e.g., isoflurane, sevoflurane, desflurane, enflurane, and halothane) during maintenance with DIPRIVAN are routinely used.
From the Isoflurane (FORANE) label · effective 2024-12-09
Interactions with Desiccated Carbon Dioxide Absorbents FORANE, like some other inhalational anesthetics, can react with desiccated carbon dioxide (CO 2 ) absorbents to produce carbon monoxide, which may result in elevated levels of carboxyhemoglobin in some patients.
As with other halogenated anesthetic agents, FORANE may cause sensitivity hepatitis in patients who have been sensitized by previous exposure to halogenated anesthetics [see Contraindications (4) ] .
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.