Oak

Botanical names: Quercus spp. How It Works Tannins are the primary constituents of oak bark. 2 These tannins are potent astringents, akin to those found in witch hazel (Hamamelis virginiana). Tannins bind liquids, absorb toxins, and soothe inflamed tissues. The oak tannin, known as ellagitannin, inhibits intestinal...

Oats

Botanical names: Avena sativa How It Works The fruits (seeds) contain alkaloids, such as gramine and avenine, and saponins, such as avenacosides A and B. 2 The seeds are also rich in iron, manganese, and zinc. The straw is high in silica. Oat alkaloids are believed to account for the relaxing action of oats, but it...

Obesity

Covers the basics of obesity. Discusses health risks such as hypertension related to having excess body fat. Focuses on lifestyle changes you can make, like healthy eating and exercise. Includes information on weight-loss medicines and surgery and on creating a long-term plan with your doctor.

Obesity

Obesity is having an excess amount of body fat for your height. It raises your risk for serious health problems. These include type 2 diabetes, heart disease, high blood pressure, arthritis, sleep apnea, some types of cancer, and stroke. Obesity can be treated. This often involves a long-term plan for lifestyle changes...

Obesity: Should I Have Weight-Loss Surgery?

Guides you through decision about weight-loss surgery. Covers health problems like high blood pressure and type 2 diabetes that can be caused by obesity. Lists reasons for and against surgery. Includes an interactive tool to help you make your decision.

Obesity: Should I Take Weight-Loss Medicine?

Guides you through the decision about taking weight-loss medicine. Describes different types of medicine. Covers side effects like headaches, nausea, and bowel problems. Includes interactive tool to help you make your decision.

Obesity: Should I Use a Diet Plan to Lose Weight?

Guides through decision about whether to use a diet plan to lose weight. Explains what diet plans are and that not all diet plans are safe. Explains risks and benefits. Includes interactive tool to help you make a decision.

obeticholic acid

Primary biliary cholangitis (PBC) is a chronic liver disease that can destroy bile ducts in the liver and may lead to cirrhosis (scarring of the liver) and liver failure. PBC is a progressive disease that may have no symptoms for many years. . Obeticholic acid is used to treat PBC in adults who have not developed liver...

Obinutuzumab

Provides a summary of interactions with vitamins, herbs, and food

obinutuzumab

Obinutuzumab is used in combination with another cancer medicine called chlorambucil to treat chronic lymphocytic leukemia. Obinutuzumab is also used in combination with other cancer medicines to treat follicular lymphoma (a type of non-Hodgkin lymphoma), or to help delay the progression of this disease. . Obinutuzumab...

Object in Nose, How to Remove

There are a couple of ways to remove an object from the nose : On the side that does not contain that object, press the nostril closed. Then blow hard through the nostril on the other side. If your child can stay calm and you can see the object and grasp it, try to remove the object with tweezers. Do not try to grasp...

Object in the Eye, How to Remove

There are a couple of ways to safely remove an object from the eye. Do not try to remove : Any object made of metal. Any object that has punctured the eye. To remove a nonmetal object that is on the surface of the eye or inside the eyelid: Wash your hands before you touch the eye. Try to gently flush out the object with...

Object in the Vagina

Explains why any object left in the vagina must be removed, how to remove it, and when to seek care.

Object Stuck in a Child's Airway

An object can become stuck in the airway at any age but is most common in children younger than age 3. Although a child may not have any symptoms when something is stuck in his or her airway, any of the following symptoms may occur: Rapid, noisy, or high-pitched breathing Increased drooling Difficult, painful...

Object Stuck in the Throat

Sometimes after you swallow a pill it may feel like it "got stuck" or didn't go all the way down. This feeling usually goes away within 30 to 60 minutes if you drink liquids or eat a piece of bread. You may not have any symptoms when something is stuck in your esophagus. But when symptoms are present, they may include...

Objects in the Ear

Briefly discusses what types of objects can get in the ear and what increases the risk of foreign bodies in the ear. Offers interactive tool to help decide when to seek care. Also offers home treatment tips.

Objects in the Eye

Briefly discusses foreign objects in eye and protective eyewear. Offers interactive tool to help decide when to seek care. Also offers home treatment tips.

Objects in the Nose

Briefly discusses types of objects that can get stuck in the nose and possible symptoms. Offers interactive tool to help decide when to seek care. Also offers home treatment tips.

Obsessive-Compulsive Behaviors

A few examples of obsessive or compulsive behaviors that can interfere with your daily activities include: Frequently washing your hands, showering, or brushing your teeth. Constantly cleaning, straightening, and ordering certain objects. Checking lights, appliances, or doors again and again to be sure they are turned...

Obsessive-compulsive disorder (OCD)

Obsessive-compulsive disorder (OCD) is a type of mental health condition that causes repeated unwanted thoughts. To get rid of the thoughts (obsessions), a person with OCD does the same tasks over and over (compulsions). For example, you may fear that everything you touch has germs on it, so you wash your hands over and...

Obsessive-Compulsive Disorder (OCD)

What is obsessive-compulsive disorder (OCD)? Obsessive-compulsive disorder (OCD) is a mental health condition that causes repeated unwanted thoughts. To get rid of them, you may do the same tasks over and over. For example, if you fear that everything you touch has germs on it, you may wash your hands repeatedly to ease...

Obsessive-Compulsive Disorder: Should I Take Medicine for OCD?

Guides through decision to take medicine to treat obsessive-compulsive disorder (OCD). Explains symptoms of OCD. Describes most common types of medicines used and other treatments. Covers benefits and risks. Includes an interactive tool to help you decide.

Obstetric Panel

Briefly discusses obstetric panel, a group of blood tests used to check a person's health during early pregnancy. Includes links to info on tests such as antibody screening, blood type, complete blood count, hepatitis B, HIV, and rubella.

Obstetrician

Obstetricians (also called OBs) are medical doctors who specialize in the care of pregnant women, from the time of conception through delivery and the period following delivery (postpartum). Most obstetricians are also gynecologists who diagnose and treat diseases of the female reproductive system and provide care for...

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