HI Sandy

Yes, Erbitux can cause "Erbifog". It is cited regularly in the literature and mentioned in the patient brochure. The quote below is taken from
"Understanding Erbitux� (cetuximab) Therapy: what Patients and Caregivers Should Know About Head and Neck Cancer Therapy"
which is written and produced by the makers of Erbitux (quote below from page 17).

[quote]Weakness or Loss of Strength
During treatment, many people feel weak or feel as if they have lost their
physical strength. This is called asthenia. You may feel tired. You may notice
that you tire quickly from the things you are used to doing. You may have
trouble thinking or concentrating. [/quote]

I was told by a breast cancer survivor, that she went onto antidepressants which "detangled" her thoughts. She had to switch and change a couple of times before they found an antidepressant to suit her.

As a consequence, we tried it with Alex who was also suffering concentration and memory issues (as well as depression). He was still suffering approximately 12 months after chemo and chemoRAD treatment (July 2011)and the antidepressants worked really well. He is still on them and makes no noises about taking himself off which is unusual for him.

This isn't exactly the same as your husband as both my friend and Alex were suffering confusion from chemotherapy but it still might be worth a try...

The other issue you might consider is the destruction of you husband's thyroid. He had a small dose of radiation - yes? Couldn't hurt to get his TSH levels done to see if that is part of the problem?