Phenytoin and sleepiness, dreams and talking in sleep

Welcome to the Coping With Epilepsy Forums

Welcome to the Coping With Epilepsy forums - a peer support community for folks dealing (directly or indirectly) with seizure disorders. You can visit the forum page to see the list of forum nodes (categories/rooms) for topics.

Please have a look around and if you like what you see, please consider registering an account and joining the discussions. When you register an account and log in, you may enjoy additional benefits including no ads, access to members only (ie. private) forum nodes and more. Registering an account is free - you have nothing to lose!

bradda

New
Messages
5
Reaction score
0
Points
0
Hi everyone! Can anyone help me please?
I look after an 88year old man who was diagnosed with epilepsy in 2008. He was put on Phenytoin in 2009 after keppra and an other drug lowered his blood sodium to dangerous levels. The change over was good and he only takes 200mg of Phenytoin at night. He has not had any fits since except when he was given a 100mg Nitrofuritoin at night for urine infection. It interacted and dosage was reduced and everything was OK. However, Phenytoin seems to be affecting his sleep and he is always tired. He falls into frequent deep sleeps and dreams and starts talking in his sleep and trying to do things with his hands such as put his shoes on. If I wake him up he realises he was dreaming and is quite normal again until he falls asleep again when it starts all over again. He is defienitely not suffering form dementia. This has got worse while he has been on Trimpethoprim antibiotic for urine infections. He has taken it for 3 weeks. It is as if it has made the effects of the Phebytoin worse. It does say on leaflet that care needs to be taken when taking this antibiotic if you are on Phenytoin but it does not say why. Could anyone offer any help. We will be seeing the GP but they are quite ignorant about side effects and I would really welcoem someone elses opinion or own experience of this tablet and perhaps the antibiotic.
 
Hi Bradda --

From a SEPTRA (Trimpethoprim) website: "Septra can inhibit the hepatic metabolism of phenytoin. Given at a common clinical dosage, it increases the phenytoin half-life by 39% and decreases the phenytoin metabolic clearance rate by 27%."

Which basically means the antibiotic is making the Phenytoin stay in his system for a lot longer, at a higher than normal level. No wonder your 88-year-old is exhausted! His doctor and neurologist need to find out whether there's a different antibiotic out there that might be safer to use with the Phenytoin, and/or if it's possible to temporarily lower the dose of the Phenytoin while on the antibiotic. And it's worth asking if he could get by on a lower dose of Phenytoin anyway -- in the elderly, lower-than-average doses are the norm. If your patient is prone to UTIs, ask if there are preventive measures that might help (like daily cranberry juice).

Best,
Nakamova
 
Yeah...cranberry JUICE...not that sugared down version of the stuff. Sugar can actually aggravate a UTI. He is probably not drinking enough liquids, either.
 
The drugs.com webwite mentioned above also has a very good section on drug interactions. You can enter all of your meds (even over the counter) and it will show you the interactions. Great place to go when doctors are not coordinating care. It seems most GPs are not good at this.

I have been on Phenytoin for 23+ years. Yes, it can cause a lot of drowsiness. You may want to ask about a brand called Phenytek. It is an extended release version that I take. Helps smooth out the highs and lows.

Also remember that at 88, he may just be slowing down. Proper nutrition is a must at that age, but not always easy.
 
Back
Top Bottom