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c/reconstitution·submitted 6 days ago by u/viktor_kirchner

sterile water is not bacteriostatic water and it is not close

Discussionbranch of 9 comments

Quick one. Canada here. reconstitution works very differently where I live than in the threads that dominate the front page, and I keep seeing people confidently given advice that simply does not apply outside the US. Specifics: the route I used took 23 weeks and cost roughly what I expected. The admin was worse than…

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9 comments, started 6 days ago
u/adaeze_cabrera163 points·6 days ago

Did you write the concentration on the vial?

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u/swirl_dont_shakeMOD73 points·6 days ago

Removed a chain here. The rule is one line long and it is not negotiable.

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u/santiago_ndiaye49 points·6 days ago·edited

20mg vial, 2mL water, concentration is 20/2 — write it on the vial afterwards

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u/arto_falk28 points·6 days ago

never post a calculation as advice without stating the concentration

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u/santiago_ndiaye14 points·5 days ago

never post a calculation as advice without stating the concentration

Yes, exactly this, and it is the bit that took me 81 weeks to accept.

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u/reflux_report3 points·5 days ago

the concentration on the vial in marker is the most important step

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u/aleksi_lehtinen6 points·5 days ago·edited

Is that 30mg vial or 23mg?

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u/niels_roos50 points·6 days ago

This is correct. 2mL versus 23mL is the common mistake.

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u/india_generic_g34 points·5 days ago

swirl, do not shake, or you are courting oxidation

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About c/reconstitution

The arithmetic and the technique. Bacteriostatic versus sterile water, reconstitution volume as a concentration choice, converting mg/mL into insulin-syringe units, dead space, swirl-not-shake, stopper coring, and how long a reconstituted vial is actually good for. Math errors get corrected fast and politely.

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