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Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice.
Brand Name
Propofol Injectable Emulsion
Generic Name
Propofol Injectable Emulsion
Active Ingredient
PropofolCategory
General Anesthetic [EPC]
Variants
3
This page is for informational purposes only and does not replace medical advice. Before using any prescription or over-the-counter medication for Propofol Injectable Emulsion, you must consult a qualified healthcare professional.
Detailed information about Propofol Injectable Emulsion
Propofol is a potent intravenous general anesthetic used for the induction and maintenance of anesthesia and sedation. As a GABA-A receptor agonist, it provides rapid onset and quick recovery for surgical and intensive care patients.
Propofol dosing is highly individualized based on the patient's weight, age, physical status (ASA classification), and the specific requirements of the procedure.
For healthy adults under 55 years of age (ASA I or II), the typical induction dose is 2.0 to 2.5 mg/kg of body weight. This is usually administered as a slow IV bolus (approximately 40 mg every 10 seconds) until the onset of anesthesia. Patients over 55 or those with significant comorbidities (ASA III or IV) typically require much lower doses, often ranging from 1.0 to 1.5 mg/kg, administered more slowly to minimize cardiovascular depression.
Maintenance is usually achieved via continuous infusion. For healthy adults, the rate typically ranges from 100 to 200 mcg/kg/min (6 to 12 mg/kg/hr). If used as part of a balanced anesthesia technique with opioids or nitrous oxide, these rates may be reduced by 25-50%.
In the intensive care unit, propofol is started at a low rate of 5 mcg/kg/min and titrated upward in increments of 5 to 10 mcg/kg/min every 5 to 10 minutes until the desired level of sedation is achieved. Maintenance rates for ICU sedation typically fall between 5 and 50 mcg/kg/min. Long-term use at rates exceeding 50 mcg/kg/min is generally discouraged due to the risk of Propofol Infusion Syndrome (PRIS).
Propofol is approved for the induction of anesthesia in children aged 3 years and older. The required dose per kilogram is generally higher than in adults because children have a larger volume of distribution and higher clearance rates.
Note: Propofol is NOT approved for ICU sedation in pediatric patients or for induction in infants under 3 years old in most jurisdictions, as safety and efficacy have not been established for these uses.
No specific dosage adjustment is required for patients with renal failure or those undergoing hemodialysis, as the pharmacokinetics of propofol are not significantly altered by kidney function. However, the lipid emulsion itself should be monitored in patients with pre-existing renal issues that might affect lipid clearance.
While the liver is the primary site of metabolism, clinical studies have shown that propofol's pharmacokinetics are not significantly changed in patients with cirrhosis. However, because these patients may be more sensitive to the sedative and cardiovascular effects, healthcare providers often titrate the dose more conservatively.
Patients over the age of 65 require a significant dose reduction (often 20-50% less than younger adults). This population has a smaller volume of distribution and decreased plasma clearance, making them more susceptible to profound hypotension and apnea.
Propofol is administered exclusively by intravenous injection or infusion. Because the injection can be painful (a common side effect), it is often preceded by a small dose of lidocaine or administered into a large vein (such as the antecubital fossa).
As propofol is administered only in a clinical setting by healthcare professionals, a missed dose is not applicable in the traditional sense. If an infusion is interrupted, the patient will likely regain consciousness very quickly, and the healthcare provider will restart the infusion as necessary.
An overdose of propofol typically manifests as profound cardiovascular and respiratory depression.
> Important: Follow your healthcare provider's dosing instructions. Do not adjust your dose without medical guidance.
Propofol is generally well-tolerated when administered by experts, but certain side effects are extremely common:
Propofol is a high-alert medication that should only be used in a controlled clinical environment. The most critical safety concern is the risk of profound respiratory depression and cardiovascular collapse. Because propofol has a very narrow therapeutic index, the difference between a 'sedative' dose and a dose that causes complete cessation of breathing is small. Patients must be continuously monitored with pulse oximetry, electrocardiogram (ECG), and blood pressure measurements throughout the duration of its use.
No FDA black box warnings for Propofol. However, the FDA mandates a 'boxed' style warning in the labeling regarding the Administration Requirements: The drug should only be given by those trained in anesthesia, and the patient must be monitored at all times by a professional not performing the procedure. This is to ensure that if the patient stops breathing, someone is immediately available to manage the airway.
There are few absolute contraindications for drug combinations with propofol, as it is often used in 'polypharmacy' anesthesia. However, it should never be mixed in the same IV line with drugs that cause the emulsion to break (de-emulsification), such as certain highly acidic solutions.
Conditions where Propofol must NEVER be used:
Conditions requiring careful risk-benefit analysis:
Propofol is classified as FDA Pregnancy Category B (or considered 'generally safe for short-term use' under newer labeling). It does cross the placenta and can cause CNS depression in the fetus. It is not recommended for use in obstetrics, including Cesarean sections, because the high doses required for induction can lead to neonatal depression (floppy baby syndrome). However, it may be used for non-obstetric surgery during pregnancy if the benefits outweigh the risks. There is no clear evidence of teratogenicity (birth defects) in humans at standard clinical doses.
Propofol is excreted into human breast milk in small amounts. However, research indicates that the amount ingested by an infant through breastfeeding is negligible and unlikely to cause any clinical effects. Current guidelines from the Association of Anaesthetists suggest that breastfeeding can be safely resumed as soon as the mother is awake and alert enough to hold the baby.
Propofol is approved for induction and maintenance of anesthesia in children 3 years and older. It is NOT approved for ICU sedation in the pediatric population. This restriction followed reports of increased mortality and Propofol Infusion Syndrome (PRIS) in children receiving long-term infusions in intensive care. Children often require higher mg/kg doses than adults to achieve the same level of anesthesia due to their higher metabolic rate.
Propofol acts as a positive allosteric modulator of the GABA-A receptor. It binds to the beta-subunits of the transmembrane receptor complex, which increases the conductance of chloride ions. This action mimics and enhances the effect of the endogenous inhibitory neurotransmitter GABA. By hyperpolarizing the neurons in the reticular activating system and the cerebral cortex, propofol effectively 'shuts down' the signaling required for consciousness. At higher concentrations, it can also act as a direct agonist of the GABA-A receptor and may inhibit the NMDA (glutamate) receptor, further suppressing excitatory neurotransmission.
The onset of action is extremely rapid, occurring within 30 to 40 seconds of IV administration. The duration of a single bolus dose is short (5 to 10 minutes) due to rapid redistribution from the brain to the muscles and fat. Propofol also causes a dose-dependent decrease in systemic vascular resistance and myocardial contractility, leading to a drop in blood pressure. It is a potent respiratory depressant, causing a decrease in tidal volume and respiratory rate.
| Parameter | Value |
Common questions about Propofol Injectable Emulsion
Propofol is a powerful intravenous medication used primarily to induce and maintain general anesthesia for surgery. It is also frequently used for 'monitored anesthesia care' or conscious sedation during shorter diagnostic procedures like colonoscopies or biopsies. In the intensive care unit (ICU), healthcare providers use propofol infusions to keep patients sedated while they are on a mechanical ventilator. Because it works very quickly and wears off rapidly, it is the preferred choice for many outpatient procedures. It does not provide pain relief, so it is usually given alongside pain medications.
The most frequent side effect is pain or a burning sensation at the site of the intravenous injection, which occurs in a majority of patients. During the procedure, propofol commonly causes a temporary drop in blood pressure and a brief period where the patient stops breathing (apnea), which the anesthesia provider manages. Some patients may experience minor twitching or involuntary movements as they fall asleep. Upon waking, some individuals may feel slightly nauseated or have a mild headache, though propofol is generally less likely to cause vomiting than other anesthetics. Serious side effects like severe allergic reactions are rare but possible.
You must absolutely avoid alcohol for at least 24 hours both before and after receiving propofol. Alcohol and propofol are both central nervous system depressants, and combining them can lead to dangerous levels of sedation and respiratory failure. Drinking alcohol shortly after a procedure involving propofol can cause you to stop breathing or lose consciousness unexpectedly. Most surgical centers require a patient to have a sober adult escort them home to ensure they do not consume alcohol or perform dangerous tasks. Always follow the specific 'NPO' (nothing by mouth) instructions provided by your surgical team.
Propofol is generally reserved for situations where the benefit to the mother outweighs the potential risk to the fetus. While it is not known to cause birth defects in humans, it does cross the placenta and can cause the baby to be drowsy or have trouble breathing if administered right before delivery. For this reason, it is not the first choice for Cesarean sections unless specifically indicated by an anesthesiologist. If you require emergency surgery while pregnant, propofol may be used, but your medical team will monitor the baby closely. Always inform your healthcare provider if you are or could be pregnant before any procedure.
Propofol is one of the fastest-acting anesthetics available, typically taking effect within 30 to 45 seconds of being injected into a vein. Most patients report feeling a slight 'flush' or a cold sensation in their arm, followed by a feeling of deep relaxation, and then they are asleep before they can count to ten. This rapid onset is due to the drug's high fat-solubility, which allows it to enter the brain almost immediately. The recovery is also relatively quick; once the infusion is stopped, most patients begin to wake up within 5 to 10 minutes. You will likely feel groggy for an hour or two afterward.
In a surgical setting, propofol is stopped suddenly by the anesthesiologist to allow the patient to wake up, which is the intended use of the drug. However, for patients in an ICU who have been on a propofol infusion for several days, stopping it abruptly can lead to 'withdrawal-like' symptoms such as agitation, anxiety, and rapid heart rate. In these long-term cases, doctors usually 'wean' or slowly decrease the dose to allow the patient's body to adjust. Since propofol is only administered by medical professionals, you will never be in a position to stop the medication yourself. The medical team will manage the discontinuation process based on your clinical needs.
It is impossible to miss a dose of propofol in the traditional sense because it is not a medication you take at home. It is administered only by trained healthcare professionals in a hospital or clinical setting via a continuous IV drip or specific injections. If an IV pump were to fail or a dose were missed during surgery, the patient would begin to wake up very quickly, and the anesthesia provider would immediately correct the issue. Because it is cleared from the body so fast, there is no 'catch-up' dose; the medical team simply resumes the appropriate level of infusion to maintain the desired level of sedation.
For a single use during surgery, propofol does not cause weight gain. However, for patients in the intensive care unit (ICU) receiving long-term continuous infusions, the calories from the lipid emulsion (the fat-based liquid the drug is dissolved in) can be significant. Propofol provides about 1.1 calories per milliliter from soybean oil and glycerol. If a patient is on a high-dose infusion for many days, these 'hidden' calories must be calculated into their daily nutritional plan to prevent overfeeding. For the average person having a routine procedure like a colonoscopy, the caloric intake from propofol is negligible and will not affect weight.
Propofol is almost always given in combination with other medications during surgery, such as pain relievers (opioids) and muscle relaxants. However, these combinations must be carefully managed because other sedatives and painkillers can greatly increase the effects of propofol, potentially slowing your breathing to dangerous levels. It is vital that you provide your doctor with a complete list of all medications, including herbal supplements like St. John's Wort or Valerian root, as these can change how long propofol stays in your system. Your anesthesiologist will use this information to calculate the exact dose you need to stay safe and comfortable.
Yes, propofol is widely available as a generic medication and is produced by several different pharmaceutical manufacturers. The original brand name for propofol was Diprivan, but most hospitals now use generic versions because they are equally effective and more cost-efficient. While the active ingredient (propofol) is the same across all versions, different manufacturers may use slightly different preservatives or additives to prevent bacterial growth, such as EDTA or sodium metabisulfite. If you have specific allergies to preservatives or sulfites, your doctor can choose the specific formulation that is safest for you.
Other drugs with the same active ingredient (Propofol)
> Warning: Stop taking Propofol and call your doctor immediately if you experience any of these.
Propofol is intended for short-term use. However, for patients in the ICU receiving long-term sedation:
There is currently no standard FDA Black Box Warning for propofol regarding its general use. However, there are Strict Warnings regarding its administration: Propofol must only be administered by persons trained in the administration of general anesthesia and not involved in the conduct of the surgical/diagnostic procedure. Facilities for maintenance of a patent airway, artificial ventilation, and oxygen enrichment and circulatory resuscitation must be immediately available.
Report any unusual symptoms to your healthcare provider.
Patients receiving propofol require intensive monitoring:
Propofol significantly impairs cognitive and motor function. Patients must not drive, operate heavy machinery, or sign legal documents for at least 24 hours after receiving propofol. A responsible adult must accompany the patient home after discharge from an outpatient procedure.
Alcohol must be avoided for at least 24 hours before and after the administration of propofol. Alcohol acts as a CNS depressant and can dangerously potentiate the effects of propofol, leading to severe respiratory depression or prolonged unconsciousness.
In the ICU setting, propofol should be tapered gradually rather than stopped abruptly to prevent 'sedation withdrawal' or agitation. For surgical anesthesia, discontinuation is immediate, and the patient typically wakes within 5 to 15 minutes.
> Important: Discuss all your medical conditions with your healthcare provider before starting Propofol.
For each major interaction, the management strategy is almost always 'dose reduction and increased monitoring.' Because propofol is administered by an anesthesia professional, these interactions are managed in real-time by adjusting the infusion rate based on the patient's vital signs.
> Important: Tell your doctor about ALL medications, supplements, and herbal products you are taking.
There is a potential for cross-sensitivity between propofol and other lipid-emulsion-based drugs. Additionally, patients who are sensitive to sulfites should check the specific brand of propofol, as some generic formulations use sodium metabisulfite as a preservative, which can trigger asthma attacks or allergic reactions in sensitive individuals.
> Important: Your healthcare provider will evaluate your complete medical history before prescribing Propofol.
Elderly patients (over 65) are significantly more sensitive to the effects of propofol. They often experience more profound hypotension and a higher incidence of apnea. Dose reductions of 20% to 50% are typically required. Furthermore, propofol may contribute to post-operative delirium in the elderly, although this risk is generally lower than with benzodiazepines.
The pharmacokinetics of propofol are not significantly altered by renal failure. No dose adjustment is required for patients with a low GFR or those on dialysis. However, the lipid load should be monitored if the patient has underlying disorders of lipid metabolism often seen in chronic kidney disease.
In patients with chronic liver disease (Child-Pugh Class A or B), the clearance of propofol is largely unchanged. However, in cases of acute or end-stage liver failure, the sedative effects may be prolonged due to decreased protein binding and altered brain sensitivity. Doses should be titrated slowly and carefully in these individuals.
> Important: Special populations require individualized medical assessment.
| Bioavailability | 100% (IV) |
| Protein Binding | 97% - 99% |
| Half-life (Terminal) | 3 to 12 hours |
| Onset of Action | 30 - 45 seconds |
| Metabolism | Hepatic (CYP2B6, UGT1A9) |
| Excretion | Renal 88%, Fecal <2% |
Propofol is classified as an intravenous general anesthetic and sedative-hypnotic. It is the only alkylphenol currently in widespread clinical use for anesthesia. It is related in effect, but not in structure, to barbiturates (like thiopental) and benzodiazepines (like midazolam).