Jantoven
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Jantoven
Jantoven Side Effects Center
Medical Editor: John P. Cunha, DO, FACOEP
Jantoven (warfarin sodium) is used to prevent heart attacks, strokes, and blood clots in veins and arteries. It is an anticoagulant (blood thinner). This medication is available in generic form. Common side effects include nausea, loss of appetite, or stomach/abdominal pain.
The dose of Jantoven is individualized, and is based on clinical findings. Jantoven can interact with herbal (botanical) products including: bromelains, coenzyme Q10, danshen, dong quai, garlic, ginkgo biloba, ginseng, or St. John's wort. Jantoven interacts with many other drugs, and these interactions can be dangerous, even fatal. Tell your doctor all prescription and over-the-counter medications and supplements you use. Jantoven is not recommended for use during pregnancy because of serious (possibly fatal) harm to a fetus. Discuss birth control with your doctor. If you become pregnant or think you may be pregnant, tell your doctor. Consult your doctor if you plan to become pregnant. Your doctor may switch the type of medication you use during pregnancy. Very small amounts of this medication may pass into breast milk but it is unlikely to harm a nursing infant. Consult your doctor before breastfeeding.
Our Jantoven (warfarin sodium) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What is Patient Information in Detail?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
Jantoven in Detail - Patient Information: Side Effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop using warfarin and call your doctor at once if you have a serious side effect such as:
- pain, swelling, hot or cold feeling, skin changes, or discoloration anywhere on your body;
- sudden and severe leg or foot pain, foot ulcer, purple toes or fingers;
- sudden headache, dizziness, or weakness;
- unusual bleeding (nose, mouth, vagina, or rectum), bleeding from wounds or needle injections, any bleeding that will not stop;
- easy bruising, purple or red pinpoint spots under your skin;
- blood in your urine, black or bloody stools, coughing up blood or vomit that looks like coffee grounds;
- pale skin, feeling light-headed or short of breath, rapid heart rate, trouble concentrating;
- dark urine, jaundice (yellowing of the skin or eyes);
- pain in your stomach, back, or sides;
- urinating less than usual or not at all;
- numbness or muscle weakness; or
- any illness with diarrhea, fever, chills, body aches, or flu symptoms.
Less serious side effects may include:
- nausea, vomiting, mild stomach pain;
- bloating, gas; or
- altered sense of taste.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Read the entire detailed patient monograph for Jantoven (Warfarin Sodium Tablets) »
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Jantoven FDA Prescribing Information: Side Effects
(Adverse Reactions)
SIDE EFFECTS
Potential adverse reactions to Jantoven® Tablets (Warfarin Sodium Tablets, USP) may include:
- Fatal or nonfatal hemorrhage from any tissue or organ. This is a consequence of the anticoagulant effect. The signs, symptoms, and severity will vary according to the location and degree or extent of the bleeding. Hemorrhagic complications may present as paralysis; paresthesia; headache, chest, abdomen, joint, muscle or other pain; dizziness; shortness of breath, difficulty breathing or swallowing; unexplained swelling; weakness; hypotension; or unexplained shock. Therefore, the possibility of hemorrhage should be considered in evaluating the condition of any anticoagulated patient with complaints which do not indicate an obvious diagnosis. Bleeding during anticoagulant therapy does not always correlate with PT/INR. (See OVERDOSAGE: Treatment.)
- Bleeding which occurs when the PT/INR is within the therapeutic range warrants diagnostic investigation since it may unmask a previously unsuspected lesion, e.g., tumor, ulcer, etc.
- Necrosis of skin and other tissues. (See WARNINGS.)
- Adverse reactions reported infrequently include: hypersensitivity/allergic reactions, systemic cholesterol microembolization, purple toes syndrome, hepatitis, cholestatic hepatic injury, jaundice, elevated liver enzymes, hypotension, vasculitis, edema, anemia, pallor, fever, rash, dermatitis, including bullous eruptions, urticaria, angina syndrome, chest pain, abdominal pain including cramping, flatulence/bloating, fatigue, lethargy, malaise, asthenia, nausea, vomiting, diarrhea, pain, headache, dizziness, loss of consciousness, syncope, coma, taste perversion, pruritis, alopecia, cold intolerance, and paresthesia including feeling cold and chills.
Rare events of tracheal or tracheobronchial calcification have been reported in association with long-term warfarin therapy. The clinical significance of this event is unknown. Priapism has been associated with anticoagulant administration, however, a causal relationship has not been established.
Read the entire FDA prescribing information for Jantoven (Warfarin Sodium Tablets) »
Additional Jantoven Information
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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