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Pharmacology · subcategory

Formulation chemistry

Buffers, pH, isotonicity, preservatives, lyophilisation and excipient function.

16 topics297 posts2 solved Moderators: hana.sato, bench_notes About this category

bacteriostatic water sterile water cloudy or discoloured solution storage counter-ion content

16 topics

Topic	Participants	Replies	Views	Activity
Lyophilisation and why the cake looks the way it does 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 would like to understand what this number means before I repeat…	+33	37	60k	6mo
Coming back to: Solubility limits and what a cloudy solution is telling you 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. A documentation question rather than an analytical one. I have a certificate in…	+38	43	29k	13h
Buffers, pH and why a formulation is a formulation 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. Posting the method first, because I know what the first three replies will…	+11	15	51k	21mo
Isotonicity and what happens when you get it wrong 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. Posting the method first, because I know what the first three replies will otherwise be.…	+27	31	11k	18mo
Solubility limits and what a cloudy solution is telling you cloudy or discoloured solution storage counter-ion content Solubility limits and what a cloudy solution is telling you — setting out what I have, and where I think it stops being reliable. A documentation question rather than an analytical one. I have a certificate…	+11	15	34k	20h
Excipient function in a licensed injectable 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. Posting the method first, because I know what the first three replies will…	+3	7	36k	14mo
Preservatives: function, testing, and limits — one year on 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. Working through the identity arithmetic and I would like it checked. tirzepatide…	+28	32	437	8d
Second pass at: Buffers, pH and why a formulation is a formulation 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. I would like to understand what this number means before I…	+24	28	1.5k	21mo
Preservatives: function, testing, and limits 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. Working through the identity arithmetic and I would like it checked. tirzepatide has a…	+23	27	3.7k	16mo
Follow-up: Lyophilisation and why the cake looks the way it does 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 would like to understand what this number means before I repeat it…	+10	14	11k	3mo
Adsorption to container surfaces and to plastics 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. A documentation question rather than an analytical one. I have a certificate in front of…	+13	17	4.3k	5mo
About the Formulation chemistry category 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
Coming back to: Adsorption to container surfaces and to plastics 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. Posting the method first, because I know what the first three replies will otherwise be.…		2	459	17mo
Second pass at: Isotonicity and what happens when you get it wrong 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. Working through the identity arithmetic and I would like it checked.…	+1	5	2.6k	11mo
Excipient function in a licensed injectable — the long version 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. Working through the identity arithmetic and I would like…		2	100	15mo
[2026 update] Buffers, pH and why a formulation is a formulation 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. Working through the identity arithmetic and I would like it checked.…		2	773	3mo

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