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Weight loss injections/treatments

Discuss weight-loss injections and treatments, including personal experiences. Mumsnet hasn't checked the qualifications of anyone posting here. You may wish to speak to a medical professional before starting any treatments.

Manjauro !!!

13 replies

georgina8787 · 20/04/2025 10:51

Hi

just looking for some advice/experiences

any used opened refrigerated pens past the 30 day guideline “to discard”.
have 2 doses left in my pen but opened it 7 weeks ago?
do I throw away money or is this ok to use? Any experiences

OP posts:
Violashifts · 20/04/2025 10:52

Yes I use it all of the time past 30 days.

SilenceInside · 20/04/2025 10:57

It's not ok to use, according to the manufacturer's guidelines. That doesn't stop people from using it, but they are taking a risk and the risk increases the longer it's been open. The risk of contamination and the risk that the medication is breaking down and no longer effective.

I'm curious as to why you have a used pen, that you have not used for such a long gap of time.Did you stop taking Mounjaro for a period of time? Are you re-starting now?

georgina8787 · 20/04/2025 12:58

”silence inside” I used two weeks and then fell ill so refrained from using it but it has been stored in the fridge with two doses left. Manufacture say after 30 days to discard but is this just so people like myself keep having to reorder or is there a genuine risk.
as the other poster said there are a lot of people using these jabs past the 30 days with no unilateral side affects other than the ones that come with manjauro anyways
just wanted advice experience ?

OP posts:
georgina8787 · 20/04/2025 12:58

Violashifts · 20/04/2025 10:52

Yes I use it all of the time past 30 days.

thanks viola. Have you personal experience ?

OP posts:
SilenceInside · 20/04/2025 13:24

It’s not because the manufacturer want to extract maximum cash out of you. It’s based on the shelf life of the preservative used in the medication. They are super cautious because you can’t control how people store and use the pen once at home. So, it’s a risk, as I said before, and it’s up to you to decide whether to take that risk. Only you can decide that. What other people have done is irrelevant. I could run across the M25 and not be hit by a car but I wouldn’t suggest that my experience makes it any less risky for anyone else to try it.

stealthsquirrelnutkin · 20/04/2025 13:28

If it has been stored in the fridge and has never warmed to room temperature than the use by date is that which is printed on the box. It is once the cold chain has been broken that the countdown starts. So if you don't mind injecting a chilly dose you will be OK.

WeAllHaveWings · 20/04/2025 13:30

Yes there is a genuine risk using out of date medication. Risk means this is a possibility of harm. It doesn't not mean it is guaranteed, so you should not use anecdotal reports or "personal experience" from others to make you decision. You might only get replies from those where the risk did not materialise (yet....) There might be others where it did and they are no longer posting on these boards so your "survey" will be biased.

In the last 9 months I have been on these boards I have read of two individuals who used out of date pens and had horrific side effects, one hospitalised. Again, there is no "proof" it was the medication being out of date that caused it so it cannot be used as definitive that it is harmful.

It is not a simple black and white - will it harm me or not every time I do this. You are an individual, your response to out of date medication might be different to someone elses. Your pen is one instance, its condition from storage, use, etc will be different from someone elses pen.

Your decision on safety should in no part be based on the cost of the pen. Or on unprovable, and a bit tin hat, theories it is all a big commercial lie. It might be, but it also might not be.

Your decision should be based on your own research and willingness to take the risk and bear the possible consequences. Would you inject your child with significantly out of date medication? If not why not and why do it to yourself?

My own personal take. I take 6 doses from a pen stored in the fridge. The 6th dose is on day 35, 5 days over the discard date. I accept what I believe, from my own tolerance to risk and what I have read outside of social media, to be a low risk - up to others to risk assess for themselves.

7 weeks? You do you, but for me it would be a big no.

Violashifts · 20/04/2025 13:30

georgina8787 · 20/04/2025 12:58

thanks viola. Have you personal experience ?

I haven't noticed a difference in efficacy and appreciate it is my risk to take. I always keep in the fridge.

SilenceInside · 20/04/2025 13:31

@stealthsquirrelnutkin that’s not quite right. It’s once the pen has been used once, or if it’s been above 8 degrees C that the 30 day limit applies. It can only be kept in the fridge to the expiry date if it has not been used.

WeAllHaveWings · 20/04/2025 13:31

stealthsquirrelnutkin · 20/04/2025 13:28

If it has been stored in the fridge and has never warmed to room temperature than the use by date is that which is printed on the box. It is once the cold chain has been broken that the countdown starts. So if you don't mind injecting a chilly dose you will be OK.

As per the instructions the countdown also starts when the red seal is broken, the sealed medication is exposed to air and bacteria.

@georgina8787 this is a prime example of how social media misinformation could incorrectly influence your decision making.

georgina8787 · 20/04/2025 13:39

WeAllHaveWings · 20/04/2025 13:30

Yes there is a genuine risk using out of date medication. Risk means this is a possibility of harm. It doesn't not mean it is guaranteed, so you should not use anecdotal reports or "personal experience" from others to make you decision. You might only get replies from those where the risk did not materialise (yet....) There might be others where it did and they are no longer posting on these boards so your "survey" will be biased.

In the last 9 months I have been on these boards I have read of two individuals who used out of date pens and had horrific side effects, one hospitalised. Again, there is no "proof" it was the medication being out of date that caused it so it cannot be used as definitive that it is harmful.

It is not a simple black and white - will it harm me or not every time I do this. You are an individual, your response to out of date medication might be different to someone elses. Your pen is one instance, its condition from storage, use, etc will be different from someone elses pen.

Your decision on safety should in no part be based on the cost of the pen. Or on unprovable, and a bit tin hat, theories it is all a big commercial lie. It might be, but it also might not be.

Your decision should be based on your own research and willingness to take the risk and bear the possible consequences. Would you inject your child with significantly out of date medication? If not why not and why do it to yourself?

My own personal take. I take 6 doses from a pen stored in the fridge. The 6th dose is on day 35, 5 days over the discard date. I accept what I believe, from my own tolerance to risk and what I have read outside of social media, to be a low risk - up to others to risk assess for themselves.

7 weeks? You do you, but for me it would be a big no.

Thank you for your reply! It is not out of day ( expiry is august) i was saying that I opened the pen 7 weeks ago

OP posts:
SilenceInside · 20/04/2025 13:41

It is now out of date. Once you open the pen, the expiry date no longer applies and you are into the 30 day limit. Which you are well past at 7 weeks.

WeAllHaveWings · 20/04/2025 13:50

georgina8787 · 20/04/2025 13:39

Thank you for your reply! It is not out of day ( expiry is august) i was saying that I opened the pen 7 weeks ago

It is out of date if 30 days after first use.

Think of it like a jar of pasta sauce. The sauce expires December. You open the sauce the instructions say you need to use it within X days or it is out of date. You would never keep using it until December.

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