Carbon Monoxide Poisoning With Concomitant Mucosal Injury and Chemical Pneumonitis Using Sulfuric and Formic Acids in a Self-Harm Attempt.

The intentional liberation of carbon monoxide through the dehydration of formic acid has been reported with increasing frequency in the literature as a method of self-harm. Online forums have popularized this method of self-harm due to the ease of access of the required reagents, as well as the ability to perform the reaction under ambient conditions. The basis of this method of suicide is the use of sulfuric acid as a dehydrating agent, leading to the decomposition of formic acid into carbon monoxide gas. In addition to the exposure to carbon monoxide liberated by this reaction, the relatively high vapor pressure of formic acid can inadvertently lead to its inhalation and subsequently cause damage to the aerodigestive tract. We report a 21-year-old male who presented with manifestations of acute carbon monoxide poisoning and concomitant chemical pneumonitis. Increased awareness and understanding of this method of self-harm is critical in ensuring appropriate precautions are taken when caring for these individuals.

Pediatric ingestions with gummy formulated medications: a retrospective study.

CONTEXT: Gummy formulations are widely available with estimated 65% marketed for children. Currently, there are few studies describing children ingesting gummy formulated medications. The aim of this study was to quantify and identify the type of ingestions due to gummy formulated medications, evaluate their clinical significance as defined by adverse outcomes: associated symptoms, emergency department (ED) visits, and hospitalizations. METHODS: Retrospective study in children aged 0-19 exposed to gummy formulated medications from 2015 to 2017 as identified by calls made to the Regional Poison Control Center (RPCC). A list of potentially toxic gummy formulated medications was compiled and reviewed by medical and clinical toxicologists. We categorized medications into vitamins, minerals and supplements, melatonin, and other. Data collected included: medication name, number of units, age, sex, symptoms described, ED visit, hospitalization, and unintentional or intentional ingestion. DISCUSSION: Of the 66,059 pediatric exposures received by RPCC, 1143 (1.7%) involved gummy formulated medications of which 1098 were analyzed. Median age was 3 years, 57.7% were males and 7% were symptomatic. Seventy-four percent exposures involved vitamins and 24% melatonin. In comparison to other gummy exposures, those who ingested melatonin had 8.4 times higher odds of being symptomatic (OR: 8.4, 95% CI: 5.1, 14) and 4.8 times higher odds of visiting ED (OR: 4.8, 95% CI: 2.5, 9). The predominant symptoms reported were drowsiness, gastrointestinal upset, and hyperactivity. Two patients were hospitalized who ingested multiple medications, one was unintentional, and one was intentional as a suicide attempt thus admitted for psychiatric stabilization. CONCLUSIONS: Gummy formulated medications comprised <2% of the total pediatric calls to the RPCC. Although, the occurrence of symptoms is rare, these medications especially those containing melatonin should be safely stored.

Common ocular effects reported to a poison control center after systemic absorption of drugs in therapeutic and toxic doses.

PURPOSE OF REVIEW: Ocular effects resulting from medications assist toxicologists in determining substances involved when treating a poisoned patient. The intention of this review is to discuss the most common ocular effects, the medications that cause them, and the mechanisms by which they occur. RECENT FINDINGS: According to National Poison Data System, the most common reported ocular effects following a drug ingestion/injection/inhalation are mydriasis, miosis, and nystagmus. The most common drug/drug classes reported to a regional poison control center causing these ocular effects include the following: first, mydriasis - amphetamines and diphenhydramine; second, miosis - clonidine and opioids; third, nystagmus - dextromethorphan. However, many other drugs/substances can cause these effects along with other systemic effects. SUMMARY: Ocular findings are a pertinent component of any patient assessment involving therapeutic and/or toxic exposure to medications and other substances.