Chronic bromide usage results in a number of neuropsychiatric changes, including the sedative and anticonvulsant effects found with acute dosage. It is used in the medical profession to purify various steroids used in the treatment of illnesses and the decrease of pain. Lithium bromide is often used as a desiccant in air conditioning systems and is also utilized in absorption refrigerators on occasion. Their use in over-the-counter sleep aids and pain medications.
Newest Research Continues to Show that Mistletoe may be a Potent Cancer Treatment
- Adequate monitoring allows individualization and optimization of treatment due to the narrow therapeutic ranges and known pharmacokinetic variability between individuals (52).
- As with any medication, a steady-state serum concentration is reached after about four to five eliminations half-lives of regular administration (43).
- LiBr can be used as a desiccant in some forms of air conditioning due to its extremely hygroscopic nature.
- The use of methyl dibromide and ethylene dibromide in soil fumigation can leave traces of these chemicals in harvested crops.
- Intravenous loading can be performed with a NaBr solution and a protocol using a continuous rate infusion (CRI) during a 24-h period to administer a total of 900 mg/kg dose was previously suggested (51).
Given that loading doses may carry a higher risk of gastric irritation and vomiting, it is advisable to hospitalize patients during the loading dose period to enable better monitoring and control of these potential adverse effects. In canine patients, potassium bromide dosage as add-on therapy (e.g., in association with phenobarbital) is 20–40 mg/kg/day (11, 26, 28, 44, 51). For this reason, in canine patients, bromide steady-state concentrations are expected to take 2–3 months to achieve (44). Initially met with skepticism, bromide quickly gained enthusiasm within the medical field until being largely replaced by newer antiseizure medications with significantly fewer adverse effects in people. Continuous and accurate monitoring of bromide serum concentrations is necessary to maximize its therapeutic properties and ensure its safe use. The currently known challenges in measuring and monitoring bromide serum concentrations, make it difficult to tailor dosages to the individual patient and represent one of the downsides (or bad aspects) of its use.
Natural Presence and Common Uses
Bromide concentration in standard seawater (35 PSU) is about 65 mg/L, or around 0.2% of total dissolved salts. In contrast to the United States, where bromide has yet to be approved for use, it has been approved for distribution in other countries such as the United Kingdom and Australia. Bromide was originally used to treat refractory epileptics in combination with phenobarbital. Bromine is located in the periodic table’s halogens group, and its negatively charged form (Br) is an ion known as a bromide ion. Hypobromite is produced via eosinophil peroxidase, an enzyme that can use chloride but preferentially uses bromide.
Despite its widespread use, studies supporting the currently recommended serum therapeutic concentrations and its efficacy when used as monotherapy are still scarce. Due to the challenges presented in assessing serum bromide concentrations, clinicians should aim to work with a trusted laboratory and avoid comparing results obtained from different laboratories. Nonetheless, the noticeable variable sensitivity to bromide between different canine patients (40, 63), highlights the need for a tailored and individualized treatment plan, with the currently known therapeutic ranges and suggested doses to be used as an initial guide.
Probiotics and Selenium in Combination
Bromide’s mechanism of action seems related to its preferential movement across neuronal chloride channels. The present research gaps and potential future developments in the use of this medication are also reviewed and discussed. This syndrome is caused by long-term therapeutic usage of ammonium, sodium, or potassium bromides as sedatives.
Organobromine compounds are commonly used as brominated flame retardants. Bromide’s main commercial value is its use in producing organobromine compounds, which themselves are rather specialized. Balard and Löwig’s method can be used to extract bromine from seawater and certain brines. This reaction is analogous to the production of bleach, where chlorine is dissolved in the presence of sodium hydroxide.
Word of the Day
- Improvement of initially witnessed side effects was reported with both medications, but phenobarbital still appeared to be better tolerated, with 20% of the patients receiving bromide continuing to experience vomiting by the end of the study (16).
- Continuous and accurate monitoring of bromide serum concentrations is necessary to maximize its therapeutic properties and ensure its safe use.
- For this reason, there is a general recommendation for the ingestion of chloride to be maintained constant in human and veterinary patients receiving treatment with bromide (87, 88).
- In this study, bromide led to an improvement in seizure control in 11 of the 22 dogs that composed the cohort, 4 become seizure free and 7 had a reduction of seizure frequency of at least 50% (26).
Since its discovery in 1827, scientists have been keen to find out fresh uses for bromine. Bromide was the sole viable anticonvulsant on the market until the discovery of phenobarbital in 1912. Sir Charles Locock was the first to use it as an anticonvulsant on humans in 1857.
What Is Bromide? Its Natural Presence and Common Uses
Rossmeisl and Inzana (68) found a mean bromide serum concentration of 3.7 mg/dL in dogs with clinical signs of bromism, compared to 1.7 mg/dL in control dogs. Panniculitis was reported in two dogs and resolved after discontinuation of bromide treatment (69). Vomiting and diarrhea (including bloody feces) were also described in dogs treated with potassium bromide or sodium bromide but are usually not severe and seldomly indicate discontinuation of treatment (63). Podell and Fenner (23) noted polyphagia in 7/23 dogs treated with a combination of phenobarbital and bromide once the last one was added to the antiseizure plan. Controversially, irritability and restlessness were also reported with potassium bromide treatment in dogs (64). Boothe et al. (41) reported that the use of bromide as monotherapy (4) or in association with phenobarbital (3) lead to the eradication of seizures in 7 of 15 treated cats.
Peer-reviewed journal articles for bromine (Br)
Trepanier and Babish (87) suggested that the predicted mean daily doses of bromide needed to maintain an adequate serum concentration were significantly higher for patients with higher chloride content in their diet (87). The current recommended therapeutic bromide serum concentrations are based in only a few previous studies on the use of this medication (23, 26, 27). In patients showing good seizure control, bromide serum concentrations should be assessed on an annual basis.
Intravenous loading can be performed with a NaBr solution and a protocol using a continuous rate infusion (CRI) during a 24-h period to administer a total of 900 mg/kg dose was previously suggested (51). A study by Gindiciosi et al. (14) described a loading protocol that consisted of the oral administration 600 mg/kg of KBr split into multiple doses and given over a 48-h period in association with a maintenance dose of 30 mg/kg/day. The previously described protocol can also be given rectally, in patients that are unable to take oral medication (56).
Add to Collections
This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). Neither the lethal dose nor the time required to kill someone are known with any confidence. Personality changes, hallucinations, and delusions are other examples of extreme cases.
Reductions in phenobarbital dosage were possible in 35% (23) and 70% (58) of dogs, after the addition of bromide. Patients should be regularly assessed during loading dose protocols for monitoring of side effects bromide detox that might occur, allowing adjustment or discontinuation of the protocol if necessary. After the end of the loading period, dogs should continue receiving the normal maintenance bromide dose. In horses, Raidal and Edwards (54) described the use of a loading dose of 120 mg/kg/day during a 5-day period and maintenance doses of 90–100 mg/kg of potassium bromide administered once daily.
Sodium bromide can be particularly useful in dogs with disease where administration of potassium might be undesirable (e.g., hypoadrenocorticism) but is contraindicated in case of hypertension, congestive heart failure or hepatic disease (28). Loop diuretics like furosemide might also increase bromide elimination by blocking chloride and bromide reabsorption (49, 50). Mercurial diuretics can increase bromide elimination, suggesting that bromide reabsorption might occur via the chloride channels in the thick ascending limb of Henle (47, 48). Chloride and bromide compete for tubular reabsorption, with bromide being naturally more easily reabsorbed and chloride more easily excreted (39, 45). After oral administration, bromide is easily absorbed in the gastrointestinal tract and has an estimated mean bioavailability of 46% (35), and maximal concentration in the cerebrospinal fluid occurs in about 2 h (36).
Seizures can also be a consequence of intracranial disease (structural epilepsy), metabolic disorders or intoxication (reactive seizures) (6). Idiopathic epilepsy (IE), which can be further subclassified into genetic epilepsy, suspected genetic epilepsy or IE of unknown cause, is the most common cause responsible for seizures in dogs (1, 4). In canine patients, epilepsy was found to be the most prevalent chronic neurological disorder (3, 4).
Efficacy and comparative analysis with other antiseizure medications
Bromine-based compounds are also used in water purification as biocides and disinfectants in swimming pools, spas, and industrial systems. Beyond the oceans, bromide is found in smaller quantities in some minerals, salt lakes, underground brines, and even trace amounts in freshwater. Bromide ions typically exist in compounds, such as salts, where they are bonded with other elements. The element bromine (Br₂) is a reddish-brown liquid at room temperature and is a member of the halogen group, which also includes elements like chlorine and iodine. Some enzymes use bromide as substrate or as a cofactor. Bromide is rarely mentioned in the biochemical context.
