Ivermectin Expiry Date Considerations


  • Ivermectin Expiry Date Considerations

    Posted by Mike McAuliffe on May 19, 2024 at 8:28 pm EDT

    Ivermectin expiry date – do they need to be discarded after their expirary date? If not, how much is their effectiveness reduced? Is there any adverse effects from taking expired ivermectin?

    vegandan replied 2 weeks, 2 days ago 7 Members · 8 Replies
  • 8 Replies
  • vegandan

    May 20, 2024 at 2:50 am EDT

    I’m not any kind of expert or authority on medications but it is my understanding that normal tablets in their sealed packets are good for about 2 year post manufacturing in normal temperatures. That time can be extended if the packets are stored in either refrigeration or freezer. I don’t have any idea of how much impact time will have on unused IVM efficacy. It seems to be a very stable drug and the packets are well sealed in foil. I wouldn’t personally have any problem using IVM that I have stored under cold temperatures for several years if necessary. I usually buy enough IVM to last me for about a year or two before I need to reorder. So my current batch is already a year old and my previous batch is getting near the end and I have had them for about 2 years. They are close to the expiration date which was manufactured 2 years ago. Not a problem for me. I take a 6mg tab every other day prophy and will do 12mg daily when I feel something is amiss with my daily routine. So I do about 200 tabs each year.

  • Karen_flccc

    May 20, 2024 at 3:17 pm EDT

    Don’t know about ivermectin specifically, but several doctors have told me that expiration dates are rarely accurate for reduced potency. This is especially true from what I’ve heard about compounded meds since the government sets those dates at 6 months from what I’ve heard.

    Here are a couple of articles that might be helpful:



  • mad-dog-melvin

    May 23, 2024 at 4:28 pm EDT

    Here is what a compounding pharmacist told me when I asked the question. Tablets have a 2-year shelf life. For compounded Ivermectin, they are required by law to put an expiration date on the bottle. It is 6 months from the date the script was compounded. But according to him this is misleading and not true. For the last script of compounded ivermectin I purchased, he pulled the container of ivermectin he used to make my capsules and it was a 2 year expiration date, so for example I was getting the script filled in January 2024 and he said it would be good until March 2026. Hope this helps.

    • Karen_flccc

      May 23, 2024 at 10:38 pm EDT

      I was told the same by compounding pharmacist and a couple of docs. I just use my oldest IVM and haven’t worried about expiration dates. Not vaxxed. Never had Covid. Use the protocol including IVM if I feel like I’m coming down with something. Diligent about gargle/nasal spray if I’ve been around a lot of people or around someone sick.

  • dadzcats

    May 27, 2024 at 5:55 am EDT

    Mike, I have heard what others say here: that medicines are viable after 2 years and have had my doctor tell me that they only test up to the 2 year mark so afterwards there’s no data? I’m not sure if this is accurate but it makes some sense.

    Would you mind sharing where you get a ivermectin to stock up for a year or more? I have been going down a rabbit hole on this with sources from India and reading about brands from there (Iverjohn, Covemectin, etc) that have been sited as not having the amount of ivermectin in them that is labeled so 12 mg is not 12 mg. This has stopped me from ordering though I still have a stash from 2021. I would very much like to tap into a source that I can trust. What has been your experience?

    • Alastair Richardson

      May 27, 2024 at 7:10 pm EDT

      Dadzcats – I would be interested in the answer to this same question, (if you hear back from anyone!) , I bought a load in 2021 and have some left but need more, also not sure of the ‘Best by’ dating, as time flies! – it’s over 3 years ago now, can you believe it 😲

  • Belinda Hall

    May 31, 2024 at 5:06 pm EDT

    Hi, I’m asking a question that is about Ivermectin, however it’s not about the expiration. Since everyone here on this thread has been using IV I sensed you could answer my question.(The FLCCC administrator suggested signing up for this forum and post my question and then other members could share their response to my question:

    I’ve been trying to find out this question. If I take 2 ivermectin a week, do I take them 2 days in a row? Or spaced apart? The FLCCC protocal isn’t specific about that.

    I am vax injured, from my second shot, and wanted to prepare my body for a trip I’m taking. If I respond well to the 6mg, I will take it daily while I’m traveling.

    Thank you for your assistance in advance,


    • vegandan

      June 3, 2024 at 2:23 pm EDT

      Depending on what citation you use, the half life of IVM in the body is between 12 and 36 hours. I use 24 as an average. Which means that the efficacy is reduced by half every 24 hours. So 12 at start, 6 at 24H, 3 at 48H, 1.5 at 72H, etc. So there is a residual effect over time but it decreases. I take 6mg every other day as a maintenance dose. I alternate with quercetin. For me it is like trickle charging a battery. At some point I will have a stable amount of IVM in my body at all times but at a low dosage. The MOA of IVM is rather broad and beneficial that I believe the long term impact is positive and the risk is low. Just my non-medical opinion.

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