I have been taking lotrel for a few days and I have been having trouble sleeping, my doctor said the calcium channel blockers should not cause insomnia, when I took verapimil 100 mg last week it also caused insomnia that got better when I quit taking it, of course I went to the bathroom more tho, so just because it is not on the label or a recognized side effect doesn't mean it is not the cause, try getting on something else or stop taking it for a couple of days to see if the insomnia improves,
that way you can rule it out if the insomnia continues, my question is why would blood pressure meds cause insomnia, I mean if it slows your system down it makes sense it would make you more relaxed (it does me)and make it easier to sleep, unless the body is counteracting it by releasing more adrenalin or dopamine or not allowing serotonin to be converted to melatonin, you know the body trying to compensate for teh slow down, but then why would it do that if in fact it is doing that?
RR