What Is The Difference Between 99 Milligrams Of Potassium Chloride And 20 Meq?
(Newest replies first)

Updated

I was taking potassium cl er 20meq & im out of them so im trying to find something equivalent to that over the counter. How many 99 milligrams of potassium can I take to make one 20 meq dose?

11 Replies

Earliest Newest Votes
11

Re: Henrietta (# 10) Expand Referenced Message

According to the previous reply, it would be about 15 of the 99mg doses. But you should check with your pharmacist just to be safe.

Was this helpful? 0
10

How many 99mg do I take to equal 20mEq?

Was this helpful? 0
9

Top Answer
Juli's answer is correct: 20 mEq is approximately 1,485 mg.

The conversion between mg and mEq is a bit tricky and requires some chemistry knowledge but I will note the calculations below.

"A milligram, abbreviated mg, is a metric unit of mass or weight defined as one thousandth of a gram. A milliequivalent is a measure of the quantity of ions in an electrolyte fluid. One milliequivalent is one thousandth of one mole of charges and is represented by the symbol mEq. The ions of different elements vary in mass, so it is necessary to know the atomic or molecular weight of the ions and their valence before a you calculate a conversion.

To convert milligrams to milliequivalents use the formula: mEq = (mg x valence) / atomic or molecular weight." [1]

Disclaimer: I am not a chemistry expert and am only tinkering with calculations based on a page which I am linking to at the bottom.

Potassium Chrloride (KCl) has a valence of 1 atom and a molar mass of 74.5513 g/mol.

1. 99 mg times a valence of 1 = 99

2. 99 divided by a 74.5513 molar mass ~ 1.33 mEq

3. 1.33 mEq goes into 20 mEq ~ 15 times

4. 15 times 99 mg is approximately 1,485 mg.

I don't think the dosage is meant to translate directly as they are taken in different forms. I wouldn't recommend taking a solid dose of Potassium Chloride to try and replace an electrolyte solution unless your doctor or pharmacist says it's okay. And I'd appreciate it if someone could verify the accuracy of my calculations and correct me if necessary.

[1] https://sciencing.com/how-to-calculate-solubility-from-ksp-13710440.html
Was this helpful? 2
8

What is the 20meq versus the 99 mg in the store?

Was this helpful? 0
7

I need an over the counter conversion for Potassium Chloride ER M-20 MEQ TAB. I need to take two a day and my script didn’t get changed before the weekend. I’m out right now and Trillium won’t cover it as they say it’s too early. Is it cheaper to buy an over the counter product, or is there even one?

Was this helpful? 0
6

I need to know how many 99mg of Potassium to take to make 1 x 20meq's?

Was this helpful? 0
5

It's less. Equivalent to about 1500 mgs of potassium but in a different form.

Was this helpful? 0
4

Is 99mg of potassium more or last then 20 meq potassium?

Was this helpful? 8
3

My husband is taking potassium 20 meq. Today we bought potassium 99mg. Can he take that? What is the equivalent to his 20 meq?

Was this helpful? 15
2

Original prescription was for Potassium Chloride 1080 to take two 3 times a day; for some reason the pharmacy gave me potassium tabs 10meq to take 1 three times a day. Is it the same dosage?

Was this helpful? 3
1

There is no direct conversion that I can figure out. Has your doctor instructed you continue with the Potassium? Because too much of it can also be dangerous, so you shouldn't continue, unless they instruct you to do so.

Was this helpful? 5

More Discussions:

difference between potassium chloride 20 meq and cl er

My Doctor has changed me from potassium chloride 20MEQ SR MC to 2 potassium chloride ER 10MEQ ## Hello, Pamela! How are ...

2 REPLIES
What Is The Difference Between Diclofenac Dr 75mg Tab And Potassium 50mg

what is the difference between diclofenac dr 75mg tab and diclofenac potassium 50mg tab? ## They are both Diclofenac Pot...

1 REPLY
What Is The Difference Between Pot Chl And potassium gluconate

Can I use potassium gluconate instead of potassium chloride and if so how much to equal 20 meq ## Hi Donna, Can you get ...

1 REPLY
Whats The Difference Between Prescription Potassium and Potassium Vitamins

My mother has been prescribed Potassium CL 10 MEQ for several years. Averages $35-$56 for 3 months. Whats The difference...

2 REPLIES
what is the difference between allegrq120 and allegra m

DR PRESCRIBED ALLEGRA-120 ALONG WITH RELENT FOR ALLERGIC RHINOSINUITIS WITH dnd,NOW HE HAS GIVEN ALLEGRA-M ## I took all...

2 REPLIES
what is the difference between Xylon 10-200 and norco 10-325

my dr prescribed me xylon 10-200 and I have been taking norco 10-325, what's the difference between them both beside...

1 REPLY
What Is The Difference Between Regular 800mg Ibuprofen And ibuprofen800mg tab leg (Ip466)

i need to find the difference the drug store mixed my perscription with regular 800mg and the ip466 and i needed to know...

9 REPLIES
what is the difference between metoprol and metoprolol other than the shape of pill?

I was taking metoprolol 25 and last time it was a new script it is metoprol 25. Pills are different shapes. However afte...

1 REPLY
what is the difference between ER and SA bupropion

i have bupropion from 2 diff companies both 150 mg, one labeled ER the other labeled SA. The ER is white, the SA looks b...

3 REPLIES
what is the difference between cr and er Sinemet

I take generic Sinemet 25/100. What is the difference between Rytary and Sinemet, besides price? ## There is no differen...

1 REPLY