Nausea and Vomiting

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Patient education: Nausea and Vomiting

What are nausea and vomiting?

Nausea is the feeling you get when you think you might throw up. Vomiting is when you actually throw up. These 2 symptoms can happen together. But sometimes people feel nauseous without throwing up, and some people throw up without feeling nauseous first.

What causes nausea and vomiting?

The most common causes include:

Food poisoning – This can happen if you eat food that has gone bad. It is basically an infection in your stomach. Infections like these often also cause diarrhea. Other kinds of infections that affect the stomach or intestines can also cause nausea and vomiting.

Dizziness or motion sickness – This can happen if you’re on a boat or in a car, or something else that moves. It can also happen if there’s something wrong inside your ears that affects your balance.

Medicines – Lots of different medicines can cause nausea or vomiting. Some examples are antidepressants, antibiotics, vitamins, birth control pills, and pain medicines. People who are on chemotherapy for cancer treatment or who have been under anesthesia also often have nausea or vomiting.

Pregnancy – Many women who are pregnant have nausea or vomiting. People sometimes call this “morning sickness,” but it can happen at any time of day.

Gastroesophageal reflux disease (GERD)  – GERD is condition that causes the juices that are in the stomach to leak back up into the esophagus, the tube that connects the throat to the stomach. It can sometimes cause nausea.

Problems with the stomach or intestines In some people, the stomach or intestines do not move food along the way that they are supposed to. In others, the intestines can get blocked. Both of these problems can cause nausea or vomiting.

Migraine headache – Some people who get migraine headaches have nausea during their headaches.

Alcohol – Drinking too much alcohol can cause nausea and vomiting.

What can I do on my own to feel better?

Drink lots of fluids, if possible

Try eating, but start with foods that have a lot of fluid in them. Good examples are soup, Jell-O, and popsicles. If you do OK with those foods, you can try soft, bland foods, such as plain yogurt. Foods that are high in carbohydrates (“carbs”), like bread or saltine crackers, can help settle your stomach. Some people also find that ginger helps with nausea. You should avoid foods that have a lot of fat in them. They can make nausea worse. Call your doctor if your symptoms come back when you try to eat.

Avoid strong smells, such as the smell of perfume

Take medicines with meals, if possible. But check the bottle first, because some medicines must be taken on an empty stomach.


Medicines that control nausea and vomiting. Some examples include:

Promethazine (brand name: Phenergan)

Metoclopramide (brand name: Reglan)

Ondansetron (brand name: Zofran)

When should I go to the emergency room?

Develop abdominal pain

Unable to drink or keep down fluids

Throw up blood or something that looks like coffee grounds

Have a bowel movement with blood, or a bowel movement that is black and looks like tar

Have a fever higher than 101ºF

Have a severe headache or stiff neck

Feel very tired or have trouble getting up

Show signs of dehydration (meaning that your body has lost too much water).

Signs of dehydration include:

Feeling very tired

Being very thirsty or having a dry mouth or tongue

Muscle cramps



Urine that is dark yellow, or not needing to urinate for more than 5 hours


You should contact your private physician for follow-up care. If you are unable to get a timely appointment, or if you are worsening, call us.

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Prescriptions & Labs

Get your prescription filled before you leave the office. ExpressCare also offers on site X-Rays and Labs.