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

mrstapleton posted:
My 20yr old son overdosed in 10/2011 and was on life support for 5 days. At that time, his cpk levels were 80,000(dx w/rhabdomyolysis) and dropped upon release to 8,000. However, his cpk levels have never returned to normal. His levels are now around 4300 and he is in constant pain and can not lift over 30#'s on his left side. The left side of his body seems to be affected the most. The neurologist has shown concern regarding renal and heart failure. I am concerned about how serious and the prognosis if the levels remain the same. The neurologist has not discussed things in depth for him other than just weekly office visits. How serious is the risk of heart and kidney failure if levels remain at 4300? The doctor has not mentioned any concerns with his physical activities or limitations. My son currently works in landscaping and worried that we are causing more damage and that it will result in an emergency situation. Looking to be proactive and understand the extent of concern with these chronic cpk levels. Please.....any advice will help educate myself to have a better understanding.
Olivia_WebMD_Staff responded:
Hi mrstapleton!

I wish I could help with specific information, but since everyone's medical history is different we can only provide general information.

Here is a reference piece on Cardiac Enzyme Studies that gives a good rundown on CPK levels and what they mean. I hope it will be helpful to you as you talk to your son's doctor about his prognosis.

Let us know how he's doing.

Take care,

Helpful Tips

Was this Helpful?
5 of 9 found this helpful

Helpful Resources

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.