Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up


All communities will be placed in read-only mode (you will be able to see and search for posts but not start or reply to discussions) as we conduct maintenance. We will make another announcement when posting is re-opened. Thank you for your continued support and patience, and if you have any further questions, please email

Yours in health,
WebMD Community Management

My friend has alzheimers and he is shaking uncontrollably
jodi041 posted:

I have a friend that is in his 70's and he has Alzheimer's. Recently he has been uncontrollably shaking like he is cold down to his bones. His wife took him to the doctor and they said he had a bladder infection. He then passed out in the bathroom of a food store. I believe his Alzheimer's has opened another doorway since his immune system is down due to the Alzheimer's I believe either he has had a stroke or he is starting to get Parkinson's disease. I really need some help because I do not think bladder infection is the reason why he is shaking. He has also become rather incoherant and just cannot tell us what he is feeling. Please help... Thank you...
cjh1203 responded:
I don't know if an infection could cause those symptoms -- I would think it would have to be a really bad infection -- one that would require hospitalization.

It could be Parkinson's, but it seems like it wouldn't have come on so quickly. One of the possible symptoms of Parkinson's, though, is low blood pressure which can cause people to faint.

Here is an article with some possible causes of tremor and shaking:

Another possibility is dehydration. That could account for all of his symptoms. I think it can be very difficult to get Alzheimer's patients to drink enough fluids, and dehydration is a common and serious problem. If you take a little pinch of his skin on the back of his hand and it doesn't go back into place fairly quickly, that's a good sign that he's dehydrated. If he is dehydrated enough to cause these symptoms, he probably should be hospitalized and given IV fluids. Dehydration can also cause bladder problems, I believe.

Can you get him to another doctor for a second opinion? If he has so many serious symptoms, I would definitely not just take the first doctor's word that it's a bladder infection. It sounds like he needs to be seen by someone else pretty quickly.
jodi041 replied to cjh1203's response:
By the way I forgot to put in that his hands are purple like when your hands get really cold and turn purple. Plus he has a pace maker due to low heart rate. I believe I just need to tell his wife to take him in to the hospital and make sure it is nothing serious. Thank you for your thoughts.
cjh1203 replied to jodi041's response:
The purple hands could be from poor circulation. Does it happen only in cold weather or at any time. Do his feet get purple, too? If it only happens in cold weather and also affects his feet, that could be Raynaud's Syndrome .

It does sound like taking him to the hospital is a good idea. His symptoms seem too serious to wait much longer to be seen by a doctor.

Helpful Tips

Alzheimer Awareness Week- Nurture IndependenceExpert
Today, July 12th, ends Alzheimer Awareness Week and it was more than coincidental that it coincided with July 4th, Independence Day. ... More
Was this Helpful?
15 of 25 found this helpful

Related Drug Reviews

  • Drug Name User Reviews

Report Problems With Your Medications to the FDA

FDAYou are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.