YesHistLady said:I have a vial of reta 30 that was reconstituted 10 weeks ago and has sat in the refrigerator undisturbed for all that time. It is crystal clear--no floaters, etc. Would you still use it?


I really appreciate the detailed reply. My instinct is to get rid of it and you just confirmed it.eidos said:No one can tell you how much active Reta remains after 10 weeks. Based on the results of some experiments, it is more likely between 40% and 60%. The problem is not so much the loss of activity, but rather that no one knows what the degradation products consist of, what their biological effects are, or whether they are capable of triggering an immune response.
It is unlikely that bacterial contamination significant enough to form a biofilm has occurred. This depends on whether you followed proper aseptic techniques during reconstitution.
Keep in mind that none of this will be visible to the naked eye.
A quick and simple test is to check the pH by placing one or two drops on a test strip. If the pH is below 5 or above 8, you can discard it. Around 5.5 - 6, it’s worth a try.
If I were to try it, I’d start with a small dose of a few units (less than 0.05 ml, or 5 u) to check for any reaction at the injection site within 24 hours. If that’s okay, gradually increase to a higher dose. Keep a phone nearby to call emergency services, or better yet, someone with an EpiPen.
But since I pay between $15 and $30 for my vials depending on the quantity, I wouldn’t risk my life for so little.

As a geezer-in-training, I would never!spanky2026 said:Yeah, I totally read the thread title as a question about us Geezers.I was prepared to defend the no age limit for glp line!
haha, me too!spanky2026 said:Yeah, I totally read the thread title as a question about us Geezers.I was prepared to defend the no age limit for glp line!




Yes though probably degraded about 10 to 15 percent. Just adjust dose for the degradation.HistLady said:I have a vial of reta 30 that was reconstituted 10 weeks ago and has sat in the refrigerator undisturbed for all that time. It is crystal clear--no floaters, etc. Would you still use it?

It was given to me reconstituted so I doubt it was filtered or anything. I keep looking at it but will probably get rid of it.BNLFL said:10 weeks is generally my limit. Had I reconstituted it, I likely use it. It also depends how big the vial is.

Me personally would pin it.HistLady said:It was given to me reconstituted so I doubt it was filtered or anything. I keep looking at it but will probably get rid of it.

By someone you know?HistLady said:It was given to me reconstituted so I doubt it was filtered or anything. I keep looking at it but will probably get rid of it.



Nice. That is some good info.Blueeyedme said:I know it's not Reta, but this reconstituted Tirz testing was done last month.