@wolfgang59 said
Thanks for that.
I take 2x75mg sodium diclofenac a day for
arthritis so I will take advice from GP if I get Covid-19.
The Guardian article lists ibuprofen and cortisone (which is a steroid and not an NSAID) [1], but not asprin. It's specific drugs
already known to reduce immune responses in infections which are potentially problematic. The Wikipedia page does not mention "reduced immune response" as an adverse effect of taking diclofenac [2] - the page on cortisole does mention immune suppression as a benefit in patients with auto-immune diseases and organ transplant patients [3]; but the page on ibuprofen does not mention effects on the immune system [4]. The page on aspirin mentions a theoretical mechanism whereby it increases immune response [5][6]. That diclofenac is an NSAID means there's a question mark, but unless it's known to suppress immune response there's no reason to do anything, especially since aspirin appears to be ok.
Your pharmacist will probably know the answer to this. Given there's a week or so between infection and the onset of symptoms and you are already taking this stuff, waiting until symptoms start is probably a mistake. If you are at all concerned either send your Doctor a message asking the question or ask at a pharmacist.
[1] https://www.theguardian.com/world/2020/mar/14/anti-inflammatory-drugs-may-aggravate-coronavirus-infection
[2] https://en.wikipedia.org/wiki/Diclofenac
[3] https://en.wikipedia.org/wiki/Cortisone
[4] https://en.wikipedia.org/wiki/Ibuprofen
[5] https://en.wikipedia.org/wiki/Aspirin#Additional_mechanisms
[6] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2213311/
This is a study in a rat model and is written in biology techno-babble, but it's the basis for the claim in [5] that aspirin
may boost immune response.