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 About Mercury

Mercury is a well-known neurological and kidney toxin. It exists naturally in the environment, but more is released into the air, land, and water when we burn trash, dump sewage on cropland, and when our factories burn fossil fuel. Mercury has made its way into the fish part of the food chain because it is found in water. The bigger fish, such as pike, bass, and very large tuna, seem to contain more mercury because they eat smaller fish and almost immediately inherit those fish's mercury stores.

The bad news: Because eating fish that contains mercury can damage the nervous systems of unborn babies and may pose a risk to young children, The FDA has written an advisory for pregnant women. Pregnant women can safely eat 12 ounces of cooked fish per week, as long as it's from the lower-mercury species. Which fish have the most mercury? Shark, tilefish, king mackerel, and swordfish tend to top the list.

The good news: One of our most popular fishes -- canned tuna -- contains lower levels of mercury than other types. But that's where the good news ends. The Environmental Working Group advises pregnant women to eat no more than 6 ounces (about one can's worth) of tuna per month -- mainly because this fish is eaten so frequently in America.

Healthy Recipe Finder

Browse our collection of healthy, delicious recipes, from WebMD and Eating Well magazine.

Top searches: Chicken, Chocolate, Salad, Desserts, Soup

Heart Rate Calculator

Ensure you're exercising hard enough to get a good workout, but not strain your heart.

While you are exercising, you should count between...