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heapsreal I have some expired (Feb '14) leftover Famvir, what shall I do with it? Do you think it's still good?
The one class of drugs that you really have to worry about in terms of expiration dates is the tetracycline antibiotics. Specifically, doxycycline turns toxic after it expires.
For just about everything else, the only thing that happens to expired drugs is that they slowly lose their potency after time. But this process is very slow, and there's nothing magic about the expiration date; taking the medicine the day after this date is no different from taking it the day before, as you would expect.
What the expiration date means is that the drug manufacturer has tested the drug for potency for a specific shelf life, and that shelf life is reflected in the expiration date. Obviously, the drug company saves money if it doesn't have to test for longer shelf lives. And in fact, if people throw out expired drugs and buy new ones, it's actually more profitable for the drug companies to keep the expiration dates as short as possible. Doesn't it seem a bit strange that absolutely all drugs expire within a couple of years or so?
A number of years ago, the
Wall Street Journal did an investigation of this issue. It found that the vast majority of drugs were perfectly good after many times their advertised shelf life had passed. Some of these drugs had a very slight loss in potency, but nothing that would affect their clinical use. It concluded that expiration dates were set the way they were mainly for the benefit of the drug companies.
As a rule of thumb, if the exact dose of a medication isn't important, such as for a painkiller, then it's OK to keep them for many years, as the WSJ found. For example, I have kept some opiates for over ten years, and found no detectable difference in their potency from fresh ones. I recently did an experiment with some Isordil, which is like nitroglycerin except longer acting, and which you would expect to be quite volatile, and therefore useless after a few years. Nitroglycerin-type drugs are known to be very effective against CFS in many people, and I am one of them. One recent morning, I was having a lot of trouble with all my symptoms, and didn't have the energy to stay sitting up. I took 10 mg of some Isordil that was 25 years old. Sure enough, within a couple of minutes, I started feeling better, and I could tell the difference minute by minute. After five minutes, I felt fine. This is one of the best responses I've ever had to Isordil. Of course I had that standard nitrate headache, but that's a headache I've learned to love, as it means that the drug is working, and I feel better in every other respect. Unfortunately, nitroglycerin (and Isordil) are very unpredictable, and tolerance, temporary or permanent, can develop after even one dose in the treatment of ME/CFS. But when these drugs work, they're great.
For antibiotics and antivirals, it's good to be more conservative, as it's usually important to get the full dose, and we don't know at what rate the potency of these drugs decays. However, the manufacturer is always very conservative about setting the expiration date. It has to be, due to the differences in the way different batches are made, shipped, stored etc. So it's always safe to take something a few months after it has expired (with the above noted exception). After that, then it partially depends on financial matters. If you can easily afford a new dose, then go ahead. Otherwise, you can start an older dose, and if it's not as effective as it should be (which has never happened to me), you can switch to a new prescription. Just make sure there's no gap between the old and the new. The equivalent of this is actually often done in standard practice, where a standard dose of an antibiotic may be given, and if the response is not satisfactory, the dose is raised.
It's always important to examine the drugs you use, especially if they're older. If they have turned color, started to crumble, or changed in any other way that is not expected, you should throw them out, regardless of their expiration date.
It's also important that you follow the instructions about storage closely. Most medicines say that they should be stored in a cool, dry place. This leaves out the bathroom and its medicine cabinet, as showers and baths are not exactly dry, and tend to heat up the room. Refrigeration or freezing is best, but only if the medicine explicitly says it's permitted (which is rare). Otherwise, the cold may damage the drug. All drugs have storage temperature instructions; if they don't come with your prescription (which they should) or you no longer have them, you can find them on the Web.
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zzz I'm intrigued by the Zantac antiviral activity.
Is it anecdotal or are there any clinical studies?
I'd love to learn more about it.
Here's a quote from another post where I answer the main part of that question:
In 1979, Dr. Jay Goldstein discovered that he could cure acute mononucleosis infections in 90% of his patients in one to two days by using Tagamet. The theory behind this can be found on page 196 of
Chronic Fatigue Syndrome Treatment: A Treatment Guide (well worth the $4 if you don't already have this book). You can also find this page online
here. Tagamet is also helpful in reducing ME/CFS symptoms in general for 20% of the people who take it (sometimes by quite a bit); you may be more likely than most people to benefit from it since your CFS seems to be connected with your EBV.
Despite the fact that Dr. Goldstein published a paper on this, and the results were duplicated elsewhere, this still has not been adopted as a standard treatment for mononucleosis, so your doctor may not be familiar with it. However, it is quite effective; people with refractive mononucleosis used to travel long distances just to have Dr. Goldstein give them Tagamet. It was available only by prescription back then; now, you can get it over-the-counter at any drugstore, and cheap generic forms (cimetidine) are available. Tagamet is effective against all herpes viruses. From
Life Extension Magazine:
While pharmaceutical companies promote expensive and only partially effective anti-viral drugs, there is evidence dating back more than 20 years that the drug cimetidine (sold over-the-counter as Tagamet) is highly effective in shortening the duration or preventing the outbreaks of herpes and shingles. The problem is that virtually no physicians are prescribing cimetidine to their herpes (or shingles) patients, despite persuasive findings in peer-reviewed scientific journals.
There's also a thread about Tagamet and ME/CFS
right here on PR.
Zantac (ranitidine) works similarly to Tagamet; both are H(2) antagonists. Zantac has the advantage that it has fewer side effects than Tagamet.
Dr. Goldstein later switched to using Zantac on his patients for this reason. (Zantac hadn't been released in 1979.)
From later in that post:
Be prepared for the likelihood that your doctor has never heard of this. As Dr. Goldstein says on page 313 of
tuning the Brain:
As a probably predictable aside, I should mention no one evinced the slightest curiosity about how these results [the rapid termination of LSD effects using niacin] were accomplished, and this "antidote" remains little known thirty years later, much like my discovery in 1979 that cimetidine made acute infectious mononucleosis in teenagers or adults (and varicella, too) resolve in one or two days. I am getting tired of whining about it, but hardly anyone is aware of this treatment, even now [in 2004, 25 years after its discovery]. Although I reported a 90 percent cure rate in over 100 patients (rather high for a placebo response), the results were "anecdotal". Naturally, I was unable to get a grant to perform a double-blind, placebo-controlled experiment. "But Tagamet (and later Zantac) is for ulcers," the reviewers would write. The fact that the chairman of the department of infectious diseases at the local medical school was my coinvestigator on the grant proposal did not grease the wheel at all.
So to this day, the results are considered "anecdotal", even though Dr. Goldstein continued to use Zantac (ranitidine) successfully until his retirement seven years later.
Think about it: Why should the drug companies (who fund most drug studies) fund an expensive study to see if Zantac, which is now an inexpensive OTC drug (especially when bought in its generic form) works as well as the expensive antivirals? Think of all the money they would lose if people switched from the expensive antivirals to Zantac! And you have to take the antivirals for a long time, whereas Zantac gets rid of all symptoms in one or two days when it works.
Dr. Goldstein found that Zantac could also improve all symptoms in about 20% of ME/CFS patients. You can see
this post for further details. There is more discussion about Zantac in the rest of that thread.
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heapsreal and @
zzz Thanks for all the helpful info! I don't seem to have the symptoms of internal shingles and am wondering if the positive IgM was a cross reaction with the EBV like you mentioned? I am not sure what kind of test was run for the VZV and would have to dig out all my material. Since Famvir would treat the VZV, too, then I am okay in either scenario!
I would certainly think so. And based on your history and symptoms, I think that it's unlikely that you have an active VZV infection.
I've had chicken pox twice. I had measles twice too. I think it does indicate an immune system with some problems even as a child.
Having chickenpox twice is quite rare (although you're the second example in this thread!) and it seems to always indicate a weak immune system (which is why we have multiple examples in this thread). Having measles twice is yet more evidence of that. Specifically, it sounds like you may have been having problems with your memory B cells; malfunctioning B cells have now been associated with ME/CFS, such as in the rituximab trials.