Methadone balance...

[Pharmanaut]

Originally Posted by johnep

I prefer the Nekem cylinders for measuring liquids.
johnep

Agree with you there.
Dispensing measures are good for measuring a known amount.
Cylinder types are better for an unknown amount.

[SolomonQ]

I cant see why the balances would be down, from what ive experoiienced so far the are more likely to be up, the reason for this: well each bottle of methadone 500ml actually contains something like 510-515ml extra, dont know why, but its a fact. check it for yourselfs

[Pharmanaut]

Originally Posted by SolomonQ

I cant see why the balances would be down, from what ive experoiienced so far the are more likely to be up, the reason for this: well each bottle of methadone 500ml actually contains something like 510-515ml extra, dont know why, but its a fact. check it for yourselfs

I'm wondering if this amount would be lost in the bit that is left over in the measures, and the drips when pouring as the bottles in use now do not have a pouring lip.

Anyone here using a methadone pump?
Wondering how that affects the balances.
Do you also lose some during the pumpl cleaning routine?

[SolomonQ]

Thats the most probable reason for it being more i think, but amount lost depends on pouring techniques and if a pharmacy had 15 addicts on the same methadone type e.g. s/f then most likely all will be prepared in one go in the morning meaning only one rinse of the measuring aparatus is needed minimising wastage and the 20-15ml on top i mentioned above was actually an under-estimate its more like >20ml, and because of the need to keep a running balance the dispenser of methadine would try their hardest to minimize wastage e.g. trying more hard to increase the accuracy of the measurement and to pour out the last drop of methadone back in the bottle before rinsing.

PS running balances are still good practice not obligatory

[Pharmanaut]

Originally Posted by SolomonQ

Thats the most probable reason for it being more i think, but amount lost depends on pouring techniques and if a pharmacy had 15 addicts on the same methadone type e.g. s/f then most likely all will be prepared in one go in the morning meaning only one rinse of the measuring aparatus is needed minimising wastage and the 20-15ml on top i mentioned above was actually an under-estimate its more like >20ml, and because of the need to keep a running balance the dispenser of methadine would try their hardest to minimize wastage e.g. trying more hard to increase the accuracy of the measurement and to pour out the last drop of methadone back in the bottle before rinsing.

PS running balances are still good practice not obligatory

As undergrads we were trained never to pour back into a stock container.
Doesn't apply to Methadone!

[SolomonQ]

should know rules like that were made to be broken, key thing here is to prevent CONTAMINATION. Students are known not to rinse measuring apparatuis between different solutions, (acid-base pH experiments at college anyone??)

[Pharmanaut]

Originally Posted by SolomonQ

should know rules like that were made to be broken, key thing here is to prevent CONTAMINATION. Students are known not to rinse measuring apparatuis between different solutions, (acid-base pH experiments at college anyone??)

And there's me thinking that it was to reduce the risk of putting that white powder back into the wrong container of another white powder to avoid CONTAMINATION.

[SolomonQ]

white powder aye!! I seen what you mean, lol. You keep dealing

[Tony Schofield]

There are many white powders that were commonplace in a pharmacy when I first qualified that would be of no interest to dealers................?? I think there probably still are but since the Boots Peppermint water incident and the red tape it showered on us I send all my extemp prep to a specials manufacturer.

[johnep]

One of the 'white powder' incidents was when Sodium Fluoride was put in the Sodium Chloride stock jar. At that time Mist Diaphoretica (Sodium Chloride compound mixture) was popular. A pt tasted some but brought back as tasting 'funny'. Dispenser took a swig and was reputed to have died.

Result was that shop rounds were banned and we threw scores away in the rubbish.
johnep