Nausea is an uneasiness of the stomach that often accompanies the urge to vomit, but doesn’t always lead to vomiting. Vomiting is the forcible voluntary or involuntary emptying (“throwing up”) of stomach contents through the mouth.
Nausea and vomiting are not diseases, but they are common symptoms that may accompany many diseases and conditions.
- Motion sickness or seasickness
- Early stages of pregnancy (nausea occurs in approximately 50%-90% of all pregnancies; vomiting in 25%-55%)
- Medication-induced vomiting
- Intense pain
- Emotional stress (such as fear)
- Gallbladder disease
- Food poisoning
- Infections (such as the “stomach flu”)
- A reaction to certain smells or odors
- Heart attack
- Concussion or brain injury
- Brain tumor
- Some forms of cancer
- Bulimia or other psychological illnesses
- Gastroparesis or slow stomach emptying (a condition that can be seen in people with diabetes)
- Ingestion of toxins or excessive amounts of alcohol
There is some evidence of potential therapeutic uses for cannabis or its component chemicals (cannabinoids) and many Canadians report using cannabis for medical purposes for health problems such as chronic pain, nausea/vomiting associated with cancer chemotherapy, and spasticity with multiple sclerosis.
- Nabilone (Cesamet). This medicine is used to relieve nausea and vomiting caused by chemo. It may also improve the appetite of people who have AIDS. Nabilone is a synthetically produced THC.