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Tags · Practice

sterile water

Preservative-free water for injection.

15 topics 2 solved Group: Practice

Pharmacology 15

Related in this group: reconstitution · bacteriostatic water · concentration maths · syringe units · dead volume · titration · dose reduction · missed dose · injection site rotation · needle gauge & length · subcutaneous injection · storage

15 topics

Topic	Participants	Replies	Views	Activity
Coming back to: Solubility limits and what a cloudy solution is telling you Pharmacology › Formulation chemistry sterile water cloudy or discoloured solution storage counter-ion content On the subject in the title: Solubility limits and what a cloudy solution is telling you Working notes rather than a conclusion. Reading back through what has been written here about Solubility limits, three…	+38	43	29k	13h
Preservatives: function, testing, and limits — one year on Pharmacology › Formulation chemistry sterile water cloudy or discoloured solution storage bacteriostatic water Wiki On the subject in the title: Preservatives: function, testing, and limits — one year on Working notes rather than a conclusion. Asking about Preservatives directly, because I have read four threads on it and…	+28	32	437	8d
Follow-up: Lyophilisation and why the cake looks the way it does Pharmacology › Formulation chemistry bacteriostatic water cloudy or discoloured solution sterile water Solved Lyophilisation and why the cake looks the way it does Writing it up because I had to work it out twice and would rather nobody else did. I was wrong about Lyophilisation in a thread last spring and I would…	+10	14	11k	3mo
[2026 update] Buffers, pH and why a formulation is a formulation Pharmacology › Formulation chemistry counter-ion content storage bacteriostatic water cloudy or discoloured solution Posting this under the heading it deserves: Buffers, pH and why a formulation is a formulation Everything below is what sits behind that. A formulation question rather than a pharmacological one, though the…		2	773	3mo
Adsorption to container surfaces and to plastics Pharmacology › Formulation chemistry cloudy or discoloured solution counter-ion content sterile water bacteriostatic water On the subject in the title: Adsorption to container surfaces and to plastics Working notes rather than a conclusion. I was wrong about adsorption in a thread last spring and I would like to correct it…	+13	17	4.3k	5mo
Lyophilisation and why the cake looks the way it does Pharmacology › Formulation chemistry sterile water bacteriostatic water storage cloudy or discoloured solution Posting this under the heading it deserves: Lyophilisation and why the cake looks the way it does Everything below is what sits behind that. I was wrong about lyophilisation in a thread last spring and I…	+33	37	60k	6mo
Second pass at: Isotonicity and what happens when you get it wrong Pharmacology › Formulation chemistry counter-ion content storage bacteriostatic water sterile water Closed Second pass at: Isotonicity and what happens when you get it wrong — setting out what I have, and where I think it stops being reliable. Something about Isotonicity does not reconcile and I would like a…	+1	5	2.6k	11mo
Excipient function in a licensed injectable Pharmacology › Formulation chemistry bacteriostatic water cloudy or discoloured solution sterile water Solved Wiki Closed Excipient function in a licensed injectable Writing it up because I had to work it out twice and would rather nobody else did. I was wrong about excipient function in a thread last spring and I would like to…	+3	7	36k	14mo
Excipient function in a licensed injectable — the long version Pharmacology › Formulation chemistry sterile water storage bacteriostatic water Posting this under the heading it deserves: Excipient function in a licensed injectable — the long version Everything below is what sits behind that. A narrow question about Excipient function, deliberately…		2	100	15mo
Preservatives: function, testing, and limits Pharmacology › Formulation chemistry counter-ion content storage bacteriostatic water sterile water Preservatives: function, testing, and limits — setting out what I have, and where I think it stops being reliable. An honest uncertainty about preservatives rather than a disguised assertion. I do not know…	+23	27	3.7k	16mo
Coming back to: Adsorption to container surfaces and to plastics Pharmacology › Formulation chemistry bacteriostatic water counter-ion content storage sterile water Adsorption to container surfaces and to plastics — setting out what I have, and where I think it stops being reliable. Adsorption — I have the observation and I do not trust my interpretation of it, so I am…		2	459	17mo
About the Formulation chemistry category Pharmacology › Formulation chemistry bacteriostatic water sterile water cloudy or discoloured solution Pinned Wiki Buffers, pH, isotonicity, preservatives, lyophilisation and excipient function. This post is a community wiki: any member at trust level 3 or above can edit it, and every edit is recorded with its author and…		4	4.5k	18mo
Isotonicity and what happens when you get it wrong Pharmacology › Formulation chemistry sterile water counter-ion content storage On the subject in the title: Isotonicity and what happens when you get it wrong Working notes rather than a conclusion. I was wrong about isotonicity in a thread last spring and I would like to correct it…	+27	31	11k	18mo
Buffers, pH and why a formulation is a formulation Pharmacology › Formulation chemistry counter-ion content cloudy or discoloured solution sterile water storage Buffers, pH and why a formulation is a formulation Writing it up because I had to work it out twice and would rather nobody else did. A formulation question rather than a pharmacological one, though the two…	+11	15	51k	21mo
Second pass at: Buffers, pH and why a formulation is a formulation Pharmacology › Formulation chemistry counter-ion content cloudy or discoloured solution sterile water Wiki Second pass at: Buffers, pH and why a formulation is a formulation Writing it up because I had to work it out twice and would rather nobody else did. Posting a small dataset on Buffers. It is mine, it is…	+24	28	1.5k	21mo

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