Welcome to Just Answer and thanks for your question. Your husband may be having some depression that isn't covered by the paroxetine, since he is on such a low dose. You can ask his prescriber if an increase in dose would be best for him. There are a number of generic drugs that can be used.
What are you having to pay for paroxetine?
We purchase it from Wal-Mart and its on their $4.00 Perscriptions. But the 40mg was going to cost use $45.00 a month.
Perhaps your Walmart is different, but I write for two 20 mg tablets per day and a 30-day supply costs $8. Your doctor could also try fluoxetine (generic for Prozac). They have both the 20 mg and the 40 mg of that for $4 per month or $10 for 3 months.