Upsher-Smith Laboratories are recalling one lot of Jantoven Warfarin Sodium tablets, a blood thinner with an expiration date of September 2012. This is because one of the bottles of Jantoven 3 mg was found to contain 10 mg. The company has looked for other bottles which may contain higher concentrations of drugs but to date they have not found any. As a precaution they are withdrawing the whole batch.
Upsher-Smith Laboratories primary concern is overdose. If a patient takes a tablet they think contains 3 mg when it contains 10 mg, he or she could receive an excessive amount of anticoagulant which may result in a life threatening hemorrhage.
What the Recalled Tablets Look Like
The 3 mg tablet is tan-colored and has the letters WRF, a line and the number 10 below the line on it. The reverse side of the tablet has the number 832 on it. The 10 mg tablet has the same letters and numbers on it, but it is white.
The medication was sold by wholesalers, retail outlets and pharmacies throughout the United States.
If you have any of the product, please go to your doctor immediately to discuss your medication and get different tablets. Stopping your medication abruptly can be as dangerous as overdosing so please ensure that if you require this medication, that your doctor prescribes a different supply rather than just stopping it altogether.
For information on how to return the product, please contact the Upsher-Smith Medical Information Line on 1-888-650-3789.
If you think you have had an adverse reaction to the medication you can report it online at:
http://www.fda.gov/MedWatch/report.htm