Given that a hydrocortisone cream contains 5%flourouacil . Calculate the %w/w of fluorouracil in the prescription below. Rx fluorouracil 20g Efludex cream 60g White petrolatum ad. 300g
Thank you Humanic Genes for watching and for the kind comment. Here is a link to one of the volume-in-volume videos on the channel: th-cam.com/video/iI2A7gqN-34/w-d-xo.html.
The amount of lidocaine 4% cream is indeed 7.5 grams. However, the question is asking for the quantity of lidocaine in the entire prescription which is 15 grams. Hence, we use the 15 grams for the calculations. Hope this helps. Thank you Mitesh for watching and for the comment.
Sir please help me with this... Rx ESTRADIOL hemihydrate 0.5% w/w transdermal gel apply 1.5g to forearms q12hr for 1 month. Pharmacy have only estradiol hemihydrate in 0.06% w/w gel .. how much extra API need to add this to make prescription... thanks in advance sir..
Hi Dr. Danquah, Could you pls explain how to tackle these wordy problems? thanks. A formula calls for using 0.01% of hydrochloric acid in a formula for 1000 ml of a topical liquid. HCl has a specific gravity of 1.2 and is supplied as a 40% weight/weight solution. How many ml of hydrochloric acid are needed to prepare the 1000 ml?
Thank you @KwekuDantsil-Acquah for watching and for the comment. Not sure if I understood your comment. However, we do have our ai-powered learning platform bevinzey.com/ which is capable of helping with pharmaceutical calculations among other things. You can see more video tutorials about the ai-platform here:th-cam.com/video/KGWNVApwUO8/w-d-xo.html&pp=iAQB
Thank you Stephen for watching and for the comment. %w/w refers to the amount so solute in grams in every 100 grams of total preparation (g/100g). Hence, 20%w/w camphor will be 20 grams of camphor in every 100 grams of the flexible collodion solution while 30%w/w castor oil implies 30 grams of castor oil is present in every 100 grams of the flexible collodion solution. Hope this helps.
Question 3 is primarily testing understanding of percentage concentrations. Since there are several combinations of units that can give the same percentage strength, it will be difficulty to accurately answer question 3 without having the options provided. Hope this helps. Thank you Jannat for watching and for the comment.
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Given that a hydrocortisone cream contains 5%flourouacil . Calculate the %w/w of fluorouracil in the prescription below.
Rx fluorouracil 20g
Efludex cream 60g
White petrolatum ad. 300g
This channel is really helpful and am in need of questions related to liquid in liquid
Thank you Humanic Genes for watching and for the kind comment. Here is a link to one of the volume-in-volume videos on the channel: th-cam.com/video/iI2A7gqN-34/w-d-xo.html.
Sir 3rd example why lidocaine amount is counted for whole 15 g. Isn’t we take only half 7.5g in calculating?
The amount of lidocaine 4% cream is indeed 7.5 grams. However, the question is asking for the quantity of lidocaine in the entire prescription which is 15 grams. Hence, we use the 15 grams for the calculations. Hope this helps. Thank you Mitesh for watching and for the comment.
Sir please help me with this... Rx ESTRADIOL hemihydrate 0.5% w/w transdermal gel apply 1.5g to forearms q12hr for 1 month. Pharmacy have only estradiol hemihydrate in 0.06% w/w gel .. how much extra API need to add this to make prescription... thanks in advance sir..
@@PharmaceuticalCalculationsEasy thank you . You just answered my question with this reply .
Hi Dr. Danquah, Could you pls explain how to tackle these wordy problems? thanks. A formula calls for using 0.01% of hydrochloric acid in a formula for 1000 ml of a topical liquid. HCl has a specific gravity of 1.2 and is supplied as a 40% weight/weight solution. How many ml of hydrochloric acid are needed to prepare the 1000 ml?
Pls can you help me with this question
how much water should be added to 1L of 70% isopropyl alcohol to prepare a 30% solution.
thanks
Thank you Ruth for watching and for the comment. See the solution to your question here: jo.my/dilutionipa .
Your the best!
Thank you Samuel for watching and welcome to the Pharmaceutical Calculations community.
0:41 Any AI apps on your tutorial pl
Thank you @KwekuDantsil-Acquah for watching and for the comment. Not sure if I understood your comment. However, we do have our ai-powered learning platform bevinzey.com/ which is capable of helping with pharmaceutical calculations among other things. You can see more video tutorials about the ai-platform here:th-cam.com/video/KGWNVApwUO8/w-d-xo.html&pp=iAQB
This is Superb!
Appreciate the kind words Philip. Thanks for watching and supporting the channel.
Sir, why didn’t you use 7.5g instead of 15g to calculate the quantity of lidocaine because you said they contain equal amount .
i had the same question too, i don't know if you found the answer
Thank you very much for this!
You're very welcome Jason. Thank you for watching and for the comment.
great training, tnx
Glad you liked the video Elmira. Thank you for watching and for the comment.
thank so much
You are most welcome.
Hi sir....for flexible collodion and camphor... Since it's w/w why did you use 20/100 and 30/100
Instead of 20/80 and 30/70 since its w/w ?
Thank you Stephen for watching and for the comment. %w/w refers to the amount so solute in grams in every 100 grams of total preparation (g/100g). Hence, 20%w/w camphor will be 20 grams of camphor in every 100 grams of the flexible collodion solution while 30%w/w castor oil implies 30 grams of castor oil is present in every 100 grams of the flexible collodion solution. Hope this helps.
@@PharmaceuticalCalculationsEasy . thank you 💕
If I didn’t have multiple choice answers how would I solve number 3 with just 2 given %s?
Question 3 is primarily testing understanding of percentage concentrations. Since there are several combinations of units that can give the same percentage strength, it will be difficulty to accurately answer question 3 without having the options provided. Hope this helps. Thank you Jannat for watching and for the comment.
I have problem on this calculation
How many grams of sucrose must be added to 475ml of water to make 65% solution
No sound on this video 😢
Hi, can you please add captions to your videos?
Thanks
Thank you Shahad for watching and for the comment. Our team will work on adding captions to the videos soon.
Oh just wait he starts over😂