Prescription drug fatalities among women in rural Virginia: A study of medical examiner cases

Objective: To evaluate female drug overdose deaths from the Office of the Chief Medical Examiner, Western Virginia (1997-2003) for demographics, medical history, toxicology results, and prescribed medications.Design: Autopsy reports, death investigations, and hospital/physician notes were reviewed for 330 fatal drug poisonings among women. Data were evaluated with both qualitative and quantitative methods.Results: Most decedents were Caucasian (95 percent), their average age was 42.8 years, and the predominant manner and cause of death was accidental and polydrug toxicity, respectively. Drugs were identified on toxicology or assigned as a cause of death in all 330 cases. The three most common drug classes detected on toxicology were opioids (n = 239; 72.4 percent), antidepressants (n = 201; 60.9 percent), and sedative/anxiolytic/muscle relaxant (SAMR) (n = 161; 48.8 percent) with all three drug classes detected in 89 (27 percent) cases. Illicit drugs identified included cocaine (n = 33; 10 percent) and heroin (n = 3; 0.9 percent). Prescriptions for opioids, SAMR, and antidepressants were found in decedent name in 48 percent, 67.1 percent, and 58 percent of cases, respectively, and 46.1 percent of cases were prescribed at least one medication from each of those three drug classes.Conclusion: Although many decedents held prescriptions, and often for multiple drugs, toxicological findings indicate the frequent presence of other therapeutic drugs in the absence of a prescription. Moreover, many of these cases held simultaneous prescriptions for which there are known drug interactions. It is likely that misuse, fatal medication errors, abuse, and addiction were factors in the increased numbers of these deaths. Interventions to prevent prescription overdose deaths must involve education of both physicians and patients.

Gabapentin in Mixed Drug Fatalities: Does this Frequent Analyte Deserve More Attention?

From 2000 to 2014, drug overdose deaths increased 137% in the United States, and 61% of these deaths included some form of opiate. The vast majority of opiate-related drug fatalities include multiple drugs, although there is scant data quantitatively describing the exact drugs that contribute to deaths due to multiple drugs. In the present study, we sought to quantitatively identify the drugs that occur with opiates in accidental multidrug-related fatalities. We retrospectively explored fatal drug trends in four Michigan counties, with a focus on profiling drugs present concurrently with opiates. Blood and urine toxicology reports for mixed drug fatalities (N=180) were analyzed using frequent item analysis approaches to identify common analyte trends in opiate-related fatalities. Within our cohort, the most prevalent serum analytes included caffeine (n=147), morphine (n=90), alprazolam (n=69), gabapentin (n=46), and tetrahydrocannabinol (n=44). In 100% of cases where gabapentin was present (n=46), an opiate was also present in the serum or urine. The average gabapentin serum concentration was 13.56 μg/mL (SEM =0.33 μg/mL), with a range of 0.5-88.7 μg/mL. Gabapentin was found at very high frequency in accidental mixed drug fatalities. Gabapentin concentrations were generally within the normal therapeutic range (2-20 μg/mL). It is unknown whether a synergistic effect with opioids may contribute to central respiratory depression. Further research is warranted to determine any contributory role of gabapentin in these deaths. Confirmed interactions could have broad implications for future reporting by forensic pathologists as well as prescribing practices by clinicians.

Dextropropoxyphene Deaths: Coroner's Report

1 Dextropropoxyphene has been increasingly prescribed as an analgesic in the UK, chiefly in the form of Distalgesic (dextropropoxyphene hydrochloride 32.5 mg and paracetamol 325 mg per tablet). After reports of sudden deaths from the misuse of this combination, prescribing is declining. 2 Distalgesic remains the most common cause of fatal drug overdose in the West Midlands, UK. The 1983 Birmingham inquests are compared with those from the year 1976 to 1979. 3 In comparison with other drug fatalities, death characteristically occurs rapidly, as little as 1 h after ingestion and usually before hospital treatment can be initiated. 4 Toxicity is increased by alcohol which is also extensively abused. 5 The fatal dose may be as small as 15 tablets or possibly less. 6 Many victims are young and some never intended to take their life. 7 Convulsions and respiratory failure precede death. The elderly and respiratory cripples may be more vulnerable to accidental death. 8 Evidence suggests a liability to dependence or even addiction with dextropropoxyphene.