Temperature excursions, Help !

by | Aug 7, 2013 | Blog

While most of Europe is enjoying  the heat wave , manufacturers, wholesalers, pharmacist and RP should be living in fear and in- trepidation , how high is the temperature in our ambient storage areas going to  go ?  What  can  we do when the air conditioning is just  not  coping. How can we comply  with  Good distribution practice when we  deliver our medicines in normal vans, in which the totes become warm to the  touch. What will  a two or three hour non compliant  journey do to the core temperature of the product and indeed to the API of our medical products? Will  my  fridge compressor cope if the ambient temperature rises above 30 degrees ?We really do  not know all the answers ? We do not have all the information we need to make informed choices so we should ” err “on the  side of caution.

A hospital pharmacist  told me he was worried about his medicine deliveries, as the totes were too  hot on delivery.  He placed a data logger in the  tote and it read 29 degrees centigrade and this was after sitting for 15 minutes in  their air conditioned pharmacy. His concern was justified as placing  ” hot ” stock into his robot was resulting in the Tutela  temperature data logger in the robot alarming as the temperature was rising above 25 degrees centigrade and he was having to  record the deviations and do his root cause analysis.  He contacted the two  main wholesalers for advice and there was no one available to take his call so  he called me  for advice.

This does cause RPs a real problem, it  is not acceptable  behaviour for wholesalers to deliver medicines out with GDP guidelines. If the medicines have not been stored and transported within the manufacturers recommendations as stated on the packaging , they are  in breach of their Wholesale dealers licence,WL , and the  products marketing authority,MA, and the product  is rendered ” Un-licensed “.

I  did a pharmacy locum this month in a 100 hour pharmacy.I  went to read the fridge temperature and found it  was a ” Meat Fridge ” the plate on the front gave it away  +1 to +4? Funny, I  thought medicines are + 2 to + 8  if cold chain, however if it kept the  medication within the correct temperature limits , I  would not worry too much .  So I  looked at the  temperature log and sure enough  there were reading of 1.2 and 1.3  etc. I  asked the technician what was going on and she said

” We have had problems with the fridge it is a meat fridge , however we turned it  up a little and bought a new thermometer”

“What about the  stock”? I asked,

” It is OK , the  temperature is fine now.”

I opened the  fridge and there was insulin pens in their packaging sat  on the  base plate of the  fridge. I spoke to the  pharmacy manager when she came to  relieve me and alerted her to the deviations and to the insulin. I  told her the insulin on the  base plate should not be used as it could have frozen as “+1.2” readings can be as low as  “+0.7″ as the accuracy of the fridge data logger was + or – 0.5 degrees centigrade.

She retorted ” We cannot  destroy all that stock ! ”

I  was a little worried at the response, do pharmacist  not know they have a duty  of care to  their patients?

But  what  about the  supply  chain, people need their medication, we cannot  just  stop delivering medication when it is hot ? There are not enough vans dedicated to  cold chain deliveries  and the cost will  soar? Who will pay the extra cost ? What are the risks to the patient  if they do  not get  their medication?  What is an acceptable deviation to one product  may  not  be to another ? Will the  wholesaler credit the pharmacy if they refuse the  order on the grounds that it has been not delivered in a compliant way ? There are too  many unanswered questions , but as a scientist and a professional , I  feel that more evidence is required, manufacturers should carry out  shipping studies  and a common sense approach needs to  be adopted.

We await the  guidelines due to  be issued by the  MHRA in August to  help give some clarity  on the  situation, however for now the responsibility  rests with the  RPs who must validate their supply chain,  record all temperature excursions and make the  final decision if a product is fit  for purpose. But  remember it could be you or your child whose life may  depend on that drug one day ? Your  child could go into a diabetic coma if their insulin does not work.

 

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