
Originally Posted by
Jac
Hi PB - I'm so stoked for you that your Dad is home again.
Seroquel is an atypical antipsychotic called Quetiapine. It has a blunting effect on mood, emotion and behaviour, and can be useful for reducing psychosis and maintaining mood stability. It's not commonly used in the elderly - very small doses accomplish a lot. I'd expect that he'd be on a maximum of 25mg, but he might develop a tolerance in which case it might be increased. The key to any increase is to do it slowly.
The side effect profile is mostly focused on the logically expected areas of being less articulate, trouble with balance and dizziness (especially if he gets up from a bed or chair quickly), sleepiness, and feeling kind of dull. In your Dad's case, they'll be using this med especially wanting this 'side' effect, rather than the main effect which is to manage psychosis. It's great that he's responding well to it, since quite a large number of elderly people get more agitated on it. It can also cause nightmares, but usually only in the beginning.
The other big risk is around metabolic syndrome, and this one is so common it's just an expected effect rather than a side effect (drug companies say it's not common, nurses say it's pretty much 100% of people). Weight gain, poor lipid profile, poor blood sugar control, hypertension - the whole range of symptoms with the usual consequences for cardiovascular health. I expect that eating primally will help with the metabolic syndrome, and with a lower dose than young people take, this effect might not be too bad.
Seroquel is metabolised by the liver, so if his liver isn't really healthy he could start to accumulate the dosage in his bloodstream. It's also been noted that the elderly metabolise it up to 50% more slowly than younger people anyway. It has a half-life of about 7 hours in healthy young people.
It seems to me that he's being treated for the troubling behaviour - Seroquel isn't doing anything to sort out the original problem. Not that that's a bad thing, if it enables your Dad to remain at home. If it was me, I'd be watchful for indications that he's feeling flat and disconnected, and use that as a signal to back off the dosage a bit. You want to find that fine line between helping to manage the fear and disorientation of sundowners without also getting rid of any pleasure in being alive. Also, though, it's important to know that some people have had really horrible experiences coming off it - nausea, panic, shakes etc. I'd have a really low threshold for asking for a blood test to check serum drug levels.
Hope this helps - I'm happy to send any sources to you.
Edited to add: Sorry if this seems very negative - I'm writing from the context of you having found a drug that's working for your Dad, which is fantastic. My notes were more to help you manage the ongoing use of it and monitor his wellbeing into the future. If it comes to this with my Mum, I'd want to stay with the medication but understand what its risks are and how to work around them.