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I am so sorry that your father has been having these symptoms of short term memory loss
May I ask, can you describe the short term memory loss for me?
So there are no definite interactions with Pregnenolone and Coumadin (Warfarin), but most labels will say to discuss with his physician before giving him the Pregnenolone because of possible interaction effects. Most supplements have never been fully studied for interaction effects and this is why there is a gray area in this regards XXXXX XXXXX Pregnenolone
So I would not give him the Pregnenolone until you speak with his physician.
At his age, some memory deficits are natural and will occur. You may want to ask his physician about adding Omega-3 supplements as this can improve cognitive function, but may increase the risk of bleeding when combined with Coumadin
The beers definitely do not help, but they do not have an enormous impact as long as he is still eating a healthy diet he will be fine. If he is just relying on beers for nutrition, then that would be a problem, but that is not the case here.
The Sudoku puzzles, frequent walks, staying active (e.g. gardening, reading, etc...) are all really good to prevent memory decline as we age.
So far to date we have no sure fire medications to prevent memory or cognitive decline yet
The anesthesia does have an effect on cognition, unfortunately it is usually not reversible and this will be his baseline. But the sudoku puzzles and exercise that he does is great and will help prevent and future decline. The Pregnenolone most likely will not help him unfortunately, but it was a good idea.
Anytime, I am always happy to help. I wish your father all the best and I hope his memory issues do not continue. Also the use of lists that he can write out in a small notebook and check-off can help prevent memory decline as well. My goal is to provide you with excellent service, so if you ever have any further questions or concerns please do not hesitate to contact me at anytime.