Contact PharmainformCalc
PharmainformCalc is maintained by Sajjad Ahmad, a pharmaceutical manufacturing professional from Pakistan with 14 years of experience across solid, liquid and semi-solid dosage forms and packaging, including qualification, URS, FAT and SAT, and plant layout design. Reach out for calculation questions, corrections, new calculator suggestions or collaboration enquiries.
Contact channels
Pharmainform website
YouTube
You can also follow updates on the Pharmainform WhatsApp channel.
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To help us respond faster
- Calculation issue: the calculator name, the values entered and the result you expected.
- Article correction: the page address and the sentence or figure in question.
- New calculator idea: the formula or process you would like covered.
Corrections and feedback
Accuracy matters on this site. If you find a formula, a worked example or an acceptance limit that does not match your pharmacopoeia, your SOP or your own calculation, please say so and include the page address. Each report is reviewed, and the page is corrected if the report is right.
Suggestions for new calculators are welcome too. The most useful ones describe a calculation that you repeat in your own work, with the inputs you have and the result you need.
Response time and scope
This is a small, independently run project, so please allow a few days for a reply. Reported errors are reviewed, and the page is corrected where the report is right. We cannot provide product-specific regulatory, legal or medical advice by email.