Jantoven Side Effects
Blood in the stool, nosebleeds, and bleeding gums are some of the potentially serious side effects of Jantoven that should be reported immediately to your healthcare provider. Careful monitoring (using a blood test known as INR) can help reduce the risk of many of these serious side effects. Problems that are merely bothersome and usually not dangerous include fatigue, hair loss, and diarrhea.
Just like any medicine, Jantoven® (warfarin sodium) can cause side effects, which can be quite dangerous. The risk of many of the dangerous side effects can be reduced by careful monitoring.
(This article covers many, but not all, of the possible side effects with Jantoven. Your healthcare provider can discuss a more complete list of side effects with you.)
Some Jantoven side effects are merely bothersome and are usually not dangerous. These possible side effects include but are not limited to:
- Taste changes
- Hair loss
- Lethargy and weakness
- Nausea and vomiting
- Abdominal pain (stomach pain) and cramping
- Gas and bloating
- Chills or a persistent cold feeling.
Some Jantoven side effects are potentially serious and should be reported immediately to your healthcare provider. These include but are not limited to:
- Blood in the stool (usually seen as red or black stools)
- Bleeding gums
- Bleeding from cuts that takes a long time to stop
- Menstrual bleeding or vaginal bleeding that is heavier than normal
- Headaches, dizziness, or weakness
- Unusual bruising (bruises that develop without known cause or grow in size)
- Blood in the urine
- Coughing up blood
- Vomiting blood or material that looks like coffee grounds
- Purple-colored toes
- Dead, gangrenous tissue
- Signs of an allergic reaction, such as:
- An unexplained rash
- Swelling of the mouth or throat
- Difficulty breathing.
Careful monitoring (using a blood test known as the international normalized ratio or INR) can help reduce the risk of many of the serious side effects of Jantoven.