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I think you are misunderstanding a couple of things. The label for Cedarcure doesn’t have timed dosing, just says take it during the day. Furthermore this research article would actually indicate it’s better to take it in the afternoon for your particular drug, if there really is any connection. Which is still a crazy connection to make because you are complaining about a specific immumotherapy regimen finding not being applied to an allergy-style medication. Why not apply this logic to every drug that interacts with the immune system (which is all of them)? Furthermore as other comments pointed out, you’re mad your doctor didn’t know about a brand-new study that didn’t exist when they made a recommendation?

Doctor’s have a wide discretion and often get things wrong. But in your case, that’s not what happened. If anything your doctor actually got it right either by chance or intuition.