In mothers who take codeine during breastfeeding, opioid overdoses have occurred in their baby. Codeine is therefore not recommended in those who are breastfeeding. Co-ingestion
Opioid overdoses are often associated with benzodiazepines or alcohol use. Other CNS depressants, muscle relaxers, pain relievers, anti-convulsants, anxiolytics, treatment drugs of a psychoactive or epileptic variety or any other such drug with its active function meant to calm or mitigate neuronal signaling (barbiturates, etc.) can additionally cause a worsened condition with less likelihood of recovery cumulative to each added drug. This includes drugs less immediately classed to a slowing of the metabolism such as with GABAergic like GHB or glutamatergic antagonists like PCP or ketamine. Risk factors
Metabolic disorders
Opioids are primarily metabolized in the liver, before being excreted through urine. Opioids are metabolized by phase 1 and/or phase 2 metabolism, which can lead to the activation or inhibition of these drugs. Phase 1 metabolism is the CYP pathway which consists of different cytochrome P450s – a set of enzymes that catalyze hydrolysis, reduction, and oxidation reactions – to create an active metabolite. In contrast, Phase 2 metabolism causes the opioids to undergo conjugation, with little to no interaction with the CYP pathway. The opioids undergo phase 1 and phase 2 metabolism until they are hydrophilic enough to be renally excreted.There are various factors that play a role in how an  opioid is metabolized. In phase 1 metabolism, the CYP family has several polymorphisms, which can account for the difference in therapeutic responses within each individual.
Using slightly acidic detergent and body washes with a pH between 5.5 and 6.5Additionally, at least one study has suggested that daily intake of the supplements activated charcoal and copper chlorophyllin may temporarily improve the quality of life of individuals afflicted with TMAU by helping their bodies to oxidize and convert TMA to the odorless N-oxide (TMAO) metabolite. Study participants experienced subjective reduction in odor as well as objective reduction in TMA and increase in TMAO concentration measured in their urine. The study found that:

85% of test participants experienced complete loss of detectable "fishy" odor
10% experienced some reduction in detectable odor
5% did not experience any detectable odor reduction

History
The first clinical case of TMAU was described in 1970.

Notable media
In 2014, singer/songwriter Cassie Graves was first featured in the Daily Mail, the Daily Mirror, and The Metro UK newspapers in both print and Online, giving an interview about her experiences with Trimethylaminuria. The article was later repurposed in media across the globe, most notably by HuffPost.In 2016, Graves was then featured in Princess Productions Medical Mysteries on UKs Channel 5, which went on a journey to find an official diagnosis for the condition, and again sparked a global media interest in the condition. References
External links

This article incorporates public domain text from The U.S. National Library of Medicine and The National Human Genome Research Institute