Best way to take Meds

My 79 year old father is struggling with Alzheimer’s.
He is currently taking the following meds:
simvastatin (20 MG once a day)
warfarin sodium (6 MG once a day)
namenda (10 MG twice a day)
enalapril maleate (20 MG once a day)
exelon (9.5 MG 24 hr patch once a day)
B-12 (2000 MCG once a day)
Should these meds be taken with food?
How does coffee affect these meds?
What is the best way to take each of these meds?

[Nikodicreta]

Hi xj6yxmw and welcome to the forum.

This should be discussed with the prescribing doctor(s).
However, by doing a drug interaction check, you will find
that with the first 2 meds, Simvastatin may slightly increase the anticoagulant response to Warfarin.
It will also give you some interactions with certain foods.
Hope this helps.
Best regards.
Niko