I appreciate your update, @pdnorm. I am glad to hear that his weight is up but I can understand your concern about his behavior and concentration.

I don't recall if you mentioned his past medical history, but I'm wondering if he has seen a gerontologist (MD who specializes in aging adults). Because of the combination of weight loss and concentration, perhaps a neuropsych exam at a multidisciplinary medical center might also be a good idea.

Has the behavior/concentration problems increased with the increase in the Hemp and CBD? I'm wondering about how they might affect older adults. Generally, older adults assimilate drugs slower than younger people so that might be an issue to run by a good gerontologist.

Here is a link to a good article from the US Food and Drug Administration about medications, herbal products, etc. for older people. I would encourage you to read it and then discuss with your husband's doctor,

Here is the introduction to this article:

"Whether you’re settling into your sixties or heading into your ninth decade, be careful when taking prescription and over-the-counter medicines, herbal preparations, and supplements. And if you’re caring for older loved ones, help them stay safe, too.

Why the special concern? The older you get, the more likely you are to use additional medicines, which can increase the chance of harmful drug effects, including interactions. And, as you age, physical changes can affect the way medicines are handled by your body, leading to potential complications. For instance, your liver and kidneys may not work as well, which affects how a drug breaks down and leaves your body.

“There is no question that physiology changes as we age. Many chronic medical conditions don’t even appear until our later years,” explains RADM (Ret.) Sandra L. Kweder, M.D., F.A.C.P., a medical officer at the U.S. Food and Drug Administration. “It’s not that people are falling to pieces; some changes are just part of the normal aging process.”