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HWN Suggests

Single-Dose Activated Charcoal

Despite widespread acceptance of this antidote, there are no satisfactorily designed clinical studies addressing the benefit of a single-dose activated charcoal that would clearly support its routine use. Overall, the consensus is that if charcoal is administered within one hour of ingestion, there will be a decrease in systemic absorption noted with any drug that is bound by charcoal in the GI tract. A true clinical benefit or better final outcome does not follow.

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 Back to Black: A Review of Activated Charcoal

Activated charcoal (AC) has been recognized for almost 2 centuries as an effective adsorbent for many substances. It’s made by the controlled pyrolysis of carbon-based compounds, like peat, coconut shells, and bamboo, followed by activation at very high temperatures with various oxidizing agents. This creates a huge maze of internal pores with a surface area ranging from 800-1200 m2/g, capable of adsorbing a wide variety of drugs and toxins. But for such a universal method of decontamination, there still remains some controversies and misconceptions amongst emergency physicians and other healthcare providers. The current debate regarding the role of AC in poison management relies on reconciling the evidence in controlled volunteer trials and heterogenous overdose patients, combined with clinical experience and expert advice.

 Don’t Completely Dismiss Charcoal’s Potential Benefit in Overdose

Activated charcoal is a funny intervention. There is plenty of data, with various drugs, demonstrating decreased absorption after its administration (much of it in healthy volunteers). However, there is a lack of quality evidence demonstrating benefit in clinically meaningful outcomes, such as mortality.

 Use of activated charcoal in toxicology

Multiple dose choarcoal ensures that the cycle of recirculation is interrupted (i.e. the excreted drug is bound by charcoal instead of beaing reabsorbed).

Articles of Interest

Activated Charcoal

1g/kg, 50g in 100mL, should be given within 1 h.

Activated charcoal for pediatric poisonings: the universal antidote?

If used appropriately, activated charcoal has relatively low morbidity. Due to the lack of definitive studies showing a benefit in clinical outcome, it should not be used routinely in ingestions. AC could be considered for patients with an intact airway who present soon after ingestion of a toxic or life-threatening dose of an adsorbable toxin.

Activated charcoal for poison control

Say the word “charcoal” to almost any American and the immediate mental image will be steaks on a grill. However, say that same word in an emergency department and the image will be drastically different.

Activated charcoal: To give or not to give?

There has been much debate about the use of activated charcoal in patients who have taken overdoses and then present to Emergency Departments. There are clinical trials, research and position statements that have examined the effectiveness of activated charcoal in a number of overdoses of different medications, but there is still a debate surrounding the evidence based practice of administering activated charcoal in patients who have taken a drug overdose due to lack of evidence.

Gastric Lavage and Activated Charcoal Application

Multi-Dose Activated Charcoal (MDAC) Indications: Carbamazepine, Dapsone, Phenobarbital, Quinine, Theophylline.

Here’s Why Activated Charcoal Is in My Emergency Bag

It’s not hype but hope based on scientifically proven benefits of charcoal, testimonials, and personal experience.

Position Paper: Single-Dose Activated Charcoal

Single-dose activated charcoal should not be administered routinely in the management of poisoned patients. Based on volunteer studies, the administration of activated charcoal may be considered if a patient has ingested a potentially toxic amount of a poison (which is known to be adsorbed to charcoal) up to one hour previously.

Reality of activated charcoal administration

Theoretically, charcoal should be given to patients who present <1 hour after intoxication and who have a normal mental status. Realistically, this scenario rarely occurs, since patients generally present well outside of this time window.

The Role of Activated Charcoal in Prehospital Care

The initial use of activated charcoal dates back to 3750 BC when Egyptians used it for creating bronze from smelting ores. Egyptians also used it in 1500 BC to treat intestinal ailments and absorb foul odor in wounds alongside writing on papyrus.

The Use of Activated Charcoal for Acute Poisonings

Activated charcoal is the intervention most frequently used in the initial management of patients with acute intoxications. The use of activated charcoal has decreased over time, but there may be a subgroup of patients who would benefit from its use.

Tox and Hound – We Need to Talk About Charcoal

Activated charcoal (AC) is a gritty black substance that, when administered to a poisoned patient, gives the treating physician a sense of having done something useful. It is made by the controlled pyrolysis of carbon-based compounds such as peat, coconut shells, bamboo and other types of wood. The process of “activation” (by physical or chemical methods that will interest exactly none of you) results in a product of extremely small particle size and exceptional porosity.

Using Activated Charcoal in Medical Toxicology

Activated charcoal is prepared by pyrolysis of wood or other carbonaceous material, and then oxidation of the pyrolyzed product with steam or carbon dioxide. The fine particles which result have a surface area of 1,000 – 2,000 m2 per gram. The surface of activated charcoal contains several moieties that adsorb drugs and poisons to varying degrees.

Resources

StatPearls

An oral suspension of activated charcoal should be considered in poisonings when gastrointestinal decontamination of an ingested toxin is indicated. Activated charcoal is most efficacious when given within one hour of ingestion of the toxin. Careful consideration of the contraindications should occur before treatment with activated charcoal.

ToxCard: GI Decon

<1 year of age: 0.5-1.0 g/kg (typical dose ranges from 10 to 25g). Children 1-12 years: 0.5- 1g/kg (typical dose ranges 25 to 50g). Adults: 1g/kg (typical dose ranges from 50 to 100g per dose).

UAEM

Maximal benefit if given within 1 hour of ingestion, drug is likely still in the stomach. - No study has yet to show decrease in morbidity or mortality when empirically given to all ingestions. - Only one study has shown multi-dose activated charcoal to decrease morbidity and mortality and that was with a drug (oleander is like digoxin) that is enterohepatically metabolized.