Guest guest Posted March 18, 2004 Report Share Posted March 18, 2004 Jeanetta: How are you? Would you please help me with this math conversion? 1 grain=60mg,65mg,or 64.8mg? What is the rule? Sammy Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 18, 2004 Report Share Posted March 18, 2004 Sammy, The rule is all 3. You just have to look at which one is in context with the question you are dealing with. 1 grain can equal: 65 mg 60 mg 64.8 mg A regular aspirin is 5 grains or 325 mg. But some Phenobarbital tabs that are 1 grain are 60 mg. Not that this helps, but it can be any of the three. Della Cat Haven, Inc A No-Kill Cat Rescue (501c3) Houston, Tx www.cat-haven.org 1 grain=? mg Jeanetta: How are you? Would you please help me with this math conversion? 1 grain=60mg,65mg,or 64.8mg? What is the rule? Sammy Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 19, 2004 Report Share Posted March 19, 2004 Dear Sammy. While there is NO " one " rule, there are a couple of " rules of thumb " that may help you. If the last number is a five such as 325 mg then use the 65 mg/grain. 65 mg.......325 mg --------- = ------ = X gr 1 grain.....X grain cross multiply: 1 x 325 ------- = X gr = 5 gr 65 If the last number ends with a zero it could be either a 60 or 65 mg: Example 1: Order is 300 mg 60 mg.....300mg ------ = -------- = X gr 1 gr......X gr Cross multiply: 1 x 300 --------- = X gr = 5 gr 60 Example 2: If 260 mg is ordered: 60 mg.....260mg ------ = -------- = X gr 1 gr......X gr Cross multiply: 1 x 260 --------- = X gr = 4.33 gr 60 OR 65 mg.....260mg ------ = -------- = X gr 1 gr......X gr Cross multiply: 1 x 260 --------- = X gr = 4 gr 65 Ultimately YOU cannot decide what the equvalent factor is, but he drug company can. 64.8 is the most accurate number to use, but most pharmaceutical companies just use 60 opr 65 mg/1grain. I hope that this helps you. Respectfully, Jeanetta Mastron CPhT BSChemistry Pharm Tech Educator Founder/Owner > Sammy, > > The rule is all 3. > > You just have to look at which one is in context with the question you are > dealing with. > > 1 grain can equal: > > 65 mg > 60 mg > 64.8 mg > > A regular aspirin is 5 grains or 325 mg. But some Phenobarbital tabs that > are 1 grain are 60 mg. > > Not that this helps, but it can be any of the three. > > Della > > Cat Haven, Inc > A No-Kill Cat Rescue (501c3) > Houston, Tx > www.cat-haven.org > > 1 grain=? mg > > > Jeanetta: > How are you? Would you please help me with this math conversion? > > > 1 grain=60mg,65mg,or 64.8mg? What is the rule? > > Sammy Quote Link to comment Share on other sites More sharing options...
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