Post Covid-19, has drinkers' 'alcohol tolerance' decreased sharply?

Image of SARS-CoV-2 (blue) under microscope

Drinking too much alcohol can easily lead to a "disaster" feeling the next morning, but the symptoms can be much worse for those with post-Covid-19 illness.

Some patients even experienced symptoms similar to "alcohol poisoning," according to Fox News on March 14, citing a study at Stanford University (USA).

A study published in the journal Cureus looked at alcohol sensitivity in a small group of people who had post-Covid-19, with 50% experiencing worse headaches after drinking the same amount of alcohol as they did before Covid-19.

A 40-year-old woman said she had possibly seven shots of mixed drinks containing strong alcohol in one night before contracting Covid-19. The patient had a history of asthma, anemia, hypotension, migraines and Ehlers-Danlos syndrome.

However, since contracting Covid-19, she has experienced post-drinking symptoms similar to "alcohol poisoning after drinking a small amount of alcohol and feeling terrible for a few days after drinking".

She said her "alcohol tolerance" had dropped so significantly that a single beer would give her a severe hangover, along with worsening post-acute SARS-CoV-2 infection symptoms (PASC) for the following three days.

Another female patient (49 years old) had a history of type 1 diabetes, celiac disease (gluten intolerance) controlled by diet, and breast cancer.

The patient, who usually drinks several glasses a week, also noticed her "alcohol tolerance" decrease after contracting Covid-19. After drinking just one glass of wine, she felt "a bad reaction that left me unable to move".

The researchers concluded that alcohol sensitivity and response may occur after Covid-19 infection in PASC patients.

“Further research on this issue may provide insights into the mechanisms of long Covid-19 and other post-viral syndromes,” said Linda Geng, a Stanford University expert and co-author of the study.

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