Seek urgent medical advice (contact your GP or NHS 111) if you experience: Severe or persistent abdominal pain, especially if accompanied by vomiting Persistent vomiting or inability to keep fluids down Signs of dehydration (extreme thirst, dark urine, dizziness) Sudden severe upper abdominal pain radiating to the back (possible pancreatitis) Severe right upper abdominal pain (possible gallstones) Severe bloating with vomiting and no passage of stool or gas (possible obstruction) Persistent or severe gastrointestinal symptoms may indicate the need for dose adjustment or, rarely, discontinuation of therapy
Low GSH levels could also increase viral replication, pro-inflammatory cytokine release, endothelial damage, and immune-thrombosis, which is a hyper-coagulative clinical condition that could exacerbate morbidity and mortality in COVID-19 and PASC 598
S., et al., "Effects of nine weeks L-carnitine supplementation on exercise performance, anaerobic power, and exercise-induced oxidative stress in healthy trained adults", J Int Soc Sports Nutr, 2018, PMID: 30661327
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