The Canadian researchers argued the association was plausible, and that the likely mechanism of sudden death involved high potassium levels (hyperkalemia). Sulfamethoxazole also blocks folate metabolism, albeit at a different junction. That means it is likely to be ignored by many health professionals. Data sharing: No additional data available. Bactrim, a combination of two antibiotics, trimethoprim and sulfamethoxazole, was first approved in 1968 and 1973 in Canada and the US, respectively and has become a mainstay in pharmaceutical medicine. Results: Of the 11968 patients who died of sudden death while receiving spironolactone, we identified 328 whose death occurred within 14 days after antibiotic exposure. Everyone I have dealt with at your firm has been very professional and courteous. The overall importance of these observations relates to an expanded mechanism of action, whereby bactericidal antibiotics promote complex redox alterations that contribute to cellular damage and death, while also underlining a common evolutionary and developmental linkage between primordial bacteria and mitochondria (56,57). Please! The researchers examined cases of sudden death in those who received an outpatient prescription for co-trimoxazole, amoxicillin, ciprofloxacin, norfloxacin, or nitrofurantoin within seven days of death. Drug interactions are the Achilles heel of the medical profession. Of these, 11 968 people died suddenly and 328 of these died. You can find it in our book, Top Screwups Doctors Make and How to Avoid Them. Across different research projects, estimates suggest from 30-70% may have insufficient thiamine intake to meet the demands of daily living and given the corresponding rise in chronic health issues of metabolic e.g. And be honest; did you know trimethoprim blocks the epithelial sodium channel (ENaC) in the distal nephron, thereby impairing potassium elimination? In this analysis, we excluded patients who received prescriptions for any other antibiotic in the 21 days preceding the index date. The mTOR pathway regulates the balance between protein anabolism and catabolism critical for cell growth and division. Although the study found an association between combined use of spironolactone and trimethoprim-sulfamethoxazole and sudden death in seniors, it did not prove a cause-and-effect relationship. I can hardly eat ! Funding: This study was supported in part by a grant from the Canadian Drug Safety and Effectiveness Research Network (CDSERN) and by the Institute for Clinical Evaluative Sciences (ICES), a non-profit research institute sponsored by the Ontario Ministry of Health and Long-Term Care (MOHLTC). Its about the approach to treating people with diseases. The problem lies with the humans that program the machines. They noted then that: These findings support the notion of a potentially life-threatening drug interaction between trimethoprim and inhibitors of the renin-angiotensin aldosterone system.. 9 However, we did not examine whether the drug interaction was associated with an increased risk of sudden cardiac death, a . Most people do not need to worry about high potassium levels, says Antoniou. But they arent free. Over a 17-year period, almost 12,000 people died suddenly -- 349 of them within 14 days after taking either trimethoprim-sulfamethoxazole or another antibiotic. Although we had no information on indications for antibiotic use, we used a disease risk index to adjust for potential predictors of sudden death. Within this group, we identified cases as patients who died of sudden death within 14 days after receiving a prescription for trimethoprim-sulfamethoxazole or one of the other study antibiotics (amoxicillin, ciprofloxacin, norfloxacin or nitrofurantoin). Computers are fine. The official journal of The Royal Pharmaceutical Society, International Journal of Pharmacy Practice, Journal of Pharmaceutical Health Services Research. mitochondrial origins, it is not surprising that many are just one medication away from full blown deficiency. [2] Antoniou T, Gomes T, Mamdani M et al. More than one in ten had also received a prescription for the antibiotic in question. Antibiotics arent supposed to cause multi-symptom, chronic illness. Parker Waichman was there for my family when one of our family members was desperately in need of assistance. These databases are routinely used to conduct population based studies of drug safety, including the consequences of drug-drug interactions.6 7 14 24 We linked them in an anonymous fashion by using encrypted health card numbers. Main outcome measure Odds ratio for the association between sudden death and exposure to each antibiotic relative to amoxicillin, after adjustment for predictors of sudden death according to a disease risk index. In addition to blocking folate metabolism, the trimethoprim component of Bactrim also blocks thiamine uptake. Although other combinations of sulfonamides are available with trimethoprim, TMP-SMX is by far the most widely used. Thirty years ago as a young nurse I was quite comfortable administering drugs as ordered, and upper ranges of drugs when I was given a range via protocols. National Library of Medicine Had he been older and/or carried additional comorbidities, he might not have survived. 2015 Jun 16;162(12):JC13. It has been shown that specific transporters in the colon actively absorb folate (Said 2013) and as such contribute to folate levels in peripheral tissues and the circulation (Aufreiter et al. When trimethoprim was originally discovered and yet still, medicine believed that bacteria were somehow entirely separate from the organism in which they resided. Control patients were required to be alive at the index date and, like cases, received one of the study antibiotics in the seven days preceding the index date. The vast majority of cases (1027; 93%) were matched to at least one control (3733 controls). Co-trimoxazole induced hyperkalemia is common,13 18 can occur quickly,13 19 and can be life-threatening.20 We examined whether treatment with co-trimoxazole was associated with a higher risk of sudden death than other antibiotics used for urinary tract infection in patients receiving angiotensin converting enzyme inhibitors or angiotensin receptor blockers. So now you can see the problem. If you experienced a negative reaction to Bactrim and would like to share your story, contact us. In a previous publication by the authors of this study, there was a seven sevenfold increase in the risk of hyperkalemia induced hospital admissions inACE-inhibitors and ARBusers taking trimethoprim-sulfamethoxazole compared with those exposed toother antibiotics. Go ahead and just cover him with some Bactrim. (A side note: The authors wrote the paper in the active voice. If the goal of the computer is to capture every possible piece of billable data and alert us to every possible bad thing that could happen, the machine becomes part of the patient safety problem. The other seemed even less concerned. Its absence or insufficiency thus, derails downstream functions associated the conversion of food into ATP in each of the substrate pathways, glucose, protein, and fats, creating a biological energy deficiency that imperils human health. Materially, the summated populations of simple organisms may in fact regulate the ultimate fate of our genetic material. Setting Ontario, Canada, from 1 April 1994 to 1 January 2012. If you ever feel like covering the dangers of fluoroquinolones, I know that everyone going through fluoroquinolone toxicity syndrome would appreciate the attention and acknowledgement. Im stopping this medication ASAP and taking a full dose of thiamine today. The Canadian researchers reported that many of the patients they were tracking died suddenly within one to two weeks of starting this combination. Publication types Using the same data, they found that of the 11,968 patients who died of sudden death while receiving potassium-elevating spironolactone, 328 died within 14 days of exposure to certain antibiotics: trimethoprim-sulfamethoxazole, amoxicillin, ciprofloxacin, norfloxacin or nitrofurantoin. Automated systems check on interactions before a doctor can finalize a prescription and before a pharmacist can dispense it. Health and Social Care Information Centre. A Deadly Drug Interaction Often Ignored by Doctors and Pharm Joe Graedon is a pharmacologist who has dedicated his career to making drug information understandable to consumers. We wondered what they said about this problem. Canadian Drug Safety and Effectiveness Research Network. In a general sense, this study gives me pause because cotrimoxazole carries such a benign reputation. From this perspective, it is not inconceivable that a significant portion of the population is thiamine insufficient, if not outright deficient. The PubMed wordmark and PubMed logo are registered trademarks of the U.S. Department of Health and Human Services (HHS). Every drug which works to effect positive change can have potentially disastrous results when poorly selected or administered during a vulnerable period of time for a particular patient. This is an important question, because sudden death due to hyperkalemia in the pre-hospital setting is likely to be misattributed to intrinsic heart disease, particularly in older patients with existing cardiovascular disease or diabetes.17. Trimethoprim-sulfamethoxazole-induced hyperkalemia in patients receiving inhibitors of the renin-angiotensin system: a population-based study. Whereas nitrofurantoin and norfloxacin are limited to the treatment of urinary tract infection, amoxicillin, co-trimoxazole, and ciprofloxacin are sometimes used for infections at other sites. Recently, research released by the British Medical Journal implicated trimethoprim/sulfamethoxazole as a cause for increased risk of sudden death in specific populations. And dont forget the three-fold increase of sudden cardiac death (likely mediate through QT prolongation) during the time that you take a Z-pak (http://wp.me/p30zF0-98), Shhh! February 2, 2015 / 3:49 PM Bicycle, Scooter, and Electric Bike Accidents, Cerebral Palsy Malpractice Injury Lawsuits, Stevens Johnson Syndrome (SJS) Disease Injury Lawyers, Clergy Sexual Abuse Lawyers | Priest Abuse Attorneys, Pennsylvania Sexual Abuse Lawsuit Lawyers, Sudden Death in Those Taking Bactrim Along with ACE Inhibitors or ARBs, Bicycle, Scooter, and Electric Bike Accident, Stevens Johnson Syndrome (SJS) Disease Injury. We believe health information should be open to all. Compared with amoxicillin, trimethoprim- sulfamethoxazole was associated with a more than twofold increase in the risk of sudden Because trimethoprim induced hyperkalemia may take longer to manifest clinically, we replicated our analyses using a 14 day period between antibiotic prescription and sudden death. And the potassium level of patients taking spironolactone is usually monitored by cardiologists to make sure it stays in the appropriate range. So, based upon the blockage of the DFT>THF pathway in bacteria, trimethoprim was deemed strongly antibacterial. Co-trimoxazole is a combination antibiotic drug containing trimethoprim and sulfamethoxazole, prescribed for multiple indications and is the fourth most commonly prescribed antibiotic in the USA.1 Its use has been associated with an increased risk of sudden death among people taking renin-angiotensin system blockers.2 3 This may be owing to acute kidney injury, a rapid . World Health Organization. But the trimethoprim not the sulfamethoxazole can also elevate potassium levels and cause an interaction, he says. An interaction between the commonly prescribed antibiotic co-trimoxazole and blood pressure drugs such as lisinopril or valsartan can cause sudden death. Sorry for going off on my tangent about FQs. Importantly, thiamine sits atop these processes, as a gatekeeper of sorts. If, at any time, you have difficulty using this website, please contact us. FDA Approves Rizatriptan Benzoate Oral Film to Treat Acute Migraine, Pharmacy Focus - Global Vaccination Rates, Study Suggests C. Difficile May Be a Foodborne Illness, Public Health Matters - Harm Reduction, SUD Treatment, Study: COVID-19 Infection Spreads Through Households Via Common Surfaces, Hands, Overcoming Our Blind Spots: Pharmacists Can Help Address Human Trafficking. Maurer agreed that doctors should avoid this particular drug combination, especially since it mainly affects vulnerable seniors. Folate, or vitamin B9 is essential for DNA synthesis and repair. Compared with amoxicillin, trimethoprim-sulfamethoxazole was associated with a more than twofold increase in the risk of sudden death (adjusted OR 2.46, 95% confidence interval [CI] 1.55-3.90). Antoniou T, Gomes T, Mamdani MM, Yao Z, Hellings C, Garg AX, Weir MA, Juurlink DN. Get browser notifications for breaking news, live events, and exclusive reporting. x-ray results showing lung tissue changes. Many people think trimethoprimsulfamethoxazole [co-trimoxazole] is a fairly innocuous drug with not a lot of side effects, says Tony Antoniou, lead author on the study and a pharmacist at St Michaels Hospital in Toronto, Canada. pneumonia with high amount of eosinophil white blood cells. Although trimethoprims thiamine blocking capability was not known until 2017, had anyone bothered to look at the structure of the compound relative to that of thiamine, it would have been obvious. They simply prevent bacterial replication. This combination antibiotic is prescribed for urinary tract, respiratory, digestive and skin infections, to name just a few of its many applications. This particular study gathered data for more than 17 years, from 1994 through 2012, and included patients aged 66 years or older who were being treated with either an angiotensin-converting enzyme (ACE) inhibitor or angiotensin receptor blocker (ARB) and then suddenly died within 7 or 14 days of starting treatment as an outpatient with an oral antibiotic. 2013. Ciprofloxacin can prolong the QT interval and cause torsades de pointes in susceptible patients.27 28 35 36 37 Ciprofloxacin induced QT prolongation occurs early in the course of treatment and generally resolves when treatment is stopped;25 37 this may explain why the effect was attenuated in the 14 day analysis. And the researchers did not know why the individuals had been prescribed the antibiotics.But the results point toward greater caution in prescribing Bactrim to those taking ACE-inhibitors and ARBs, and closer monitoring of potassium levels in those patients. it has been demonstrated that major classes of bactericidal antibiotics, irrespective of their drug-target interactions, induce a common oxidative damage cellular death pathway in bacteria, leading to the production of lethal reactive oxygen species (ROS) (412) via disruption of the tricarboxylic acid (TCA) cycle and electron transport chain. Please be sure to specify the particular web page or function at issue, and provide us with any other information you may think will help us locate the area. When clinically appropriate, alternative antibiotics should be considered in these patients. Trimethoprim-sulfamethoxazole was linked to sudden death in older patients using spironolactone. There is a growing movement to identify pediatric and young adult athletes who may be at risk for sudden cardiac arrest (SCA) or sudden cardiac death (SCD) during sports participation. If this example has you concerned, you may want to read more details in our chapter Drug Interactions Can Be Deadly. There are 11 tips for preventing dangerous drug interactions at the end of the section. There also may be an issue of confounding by indication, as we dont have any data on why these individuals were prescribed these antibiotics. For example, the cases and controls were very different (the cases were more likely to have heart failure, renal failure, and all together more co-morbidities). No endorsement by ICES or the Ontario MOHLTC is intended or should be inferred. TORONTO, ON The risk of sudden death went up by more than a third in older patients taking ACE inhibitors or angiotensin-receptor blockers (ARBs) who were also put on the antibacterial agent. angiotensin converting enzyme inhibitors (ACE-inhibitors) and angiotensin receptor blockers (ARBs). Most of the patients who died were over age 85. 1950) self-taught practitioners of geriatric medicine. "One of the consequences of a high potassium level is getting these irregular heart rhythms that can be quite dangerous and cause sudden deaths," Antoniou said. Notes on Folate Carriers, Anti-Folate Medications, and Thiamine Deficiency, With Thiamine Paradox Symptoms Patience Is Key. HHS Vulnerability Disclosure, Help It also occurs twice in the pentose phosphate pathway (PPP), the alternative glucose oxidation pathway that provides nicotinamide adenine dinucleotide phosphate (NADPH) and ribose 5-phosphate (R5P) for glutathione, nucleic acid, and fatty acid synthesis and steroid hydroxylation, respectively, making thiamine necessary for not only ATP production, but required for duplication and detoxification processes. What are you thinking? PMC Participants Ontario residents aged 66 years or older treated with an angiotensin converting enzyme inhibitor or angiotensin receptor blocker.