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Overdose of DDI (Videx)?
Mar 25, 2001

I just discovered that I have been taking double the daily dosage of DDI (Videx) for over a month (4 of the 200mg tablets per day, instead of 2). I discovered this when I prepared to refill my RX (3-month mail order supply), only to find I had been taking double the prescribed dose. Am I in any danger, and what should I do? Thank you for your assistance.

Response from Dr. Cohen

Well - if you have had no symptoms - you are probably OK. The biggest side effect of concern if this medication is taken at highest doses has been pancreatitis. Any inflammation of the pancreas is usually associated with symptoms of middle belly/back pain - and can be severe if present. So that you don't even mention a symptom is helpful and reassuring. Nonetheless, I would think your clinician would consider ordering a blood test that measures pancreas function and inflammation - either an amylase or a lipase is usually done. This, if normal, would also be reassuring. The other side effect for this medication is neuropathy - again, you would notice symptoms if it were present. There are no blood tests here - so if you don't have symptoms - you don't have it.

And one more point. While I appreciate your sending this question here - anytime there is an accidental "overdose" - it is important that you are quickly in touch with whoever is prescribing these meds to you. That clinician should be available to you to monitor for any problems that could occur - since sometimes the complications are real and important to move on.

Last issue - there is now a newer formulation of ddI in which it comes as one capsule taken just once a day. It comes in different strengths - but the highest dose is still just ONE capsule once a day. So this should - if people read the label - decrease the confusion. And early reports suggest it is even better tolerated than those delicious wafers you've been chomping on...

Good luck.

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