My advice, dont give up on the meds and change them if necessary. I don't know what is normal with Strattera, but I would say if it causes this kind of behaviour it is most likely not the correct med.

There is a wide range of different meds that can be used with ADHD. Most common are meds like Adderall, Ritalin or Vyvanse but there are many others that can be used.
A lot depends on the actual dx and possible comorbidities.

Has your husband begun exhibiting this behaviour since was given the Strattera or was some of it apparent before(of course excepting the normal things you can expect from ADHD)?
If so, it could be advisable to see if there is not something else going on as well. ADHD very seldom travels alone and often comes with comorbidities like depression, anxiety and others.