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## Re: [Rejuvenation] First Injection... math quiz...

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• Not meaning to beat a dead horse but what I have written about directly injecting the IUs as marked on the syringe may be misleading to someone. In reading the
Message 1 of 5 , May 31, 2000
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Not meaning to beat a dead horse but what I have written about directly
injecting the IUs as marked on the syringe may be misleading to someone. In
reading the fine print on the Genotropin flyer there is 1.14 of liquid that
the various components are dissolved in. Being a solution the volume after
dissolving would also be 1.14 ml.

[Isn't that a strange quantity? It seems like that .14 ml is expected to
be wastage... Anyways, 1.14 ml is a lot less than the 5 ml that Humatrope
comes with, or the 3 ml that Norditropin comes with... However, you have
17.5 i.u. diluted into 1.14 c.c. of diluyent, so each 1 i.u. is contained
in every .065 c.c. - Ellis]

The vial is marked as containing 5.8 mg or 17.5 IU of rHGH. Apparently this does not mean you can inject 1 IU from an Insulin Syringe without any adjustment.

The Insulin Syringe is calibrated so that 100 IU (of Insulin I suppose) is equal to 1 ml (cc). This is apparently not true with rHGH since 1.14 ml of volume contains 5.8 mg of rHGH. Therefore .065 ml would equal 1 IU of rHGH. This would equate to 6.5 IU calibration lines on a one half cc (50 ml) Insulin Syringe.

[correct. - Ellis]

When I went on the Web and looked up IU (Internal Unit) it said words to the
effect that it was useful but the definition was vague. That is an
understatement. It would seem that it is an arbitrary volume holding an
arbitrary concentration of a drug or vitamin so long as it is understood in
general by most people who have a need to know that it is in fact that. {:o(

[I think i.u. means "international unit", did you find that it is "internal
unit" ? - Ellis]

As an aside ... The 1/2 cc Insulin Syringe is great. It has a fine 30 gauge
needle that is only 8 mm long. I hardly feel it when I inject. Also the
calibrations are spread out because of the small bore of the syringe making
it easy to read the volume. I use the Becton Dickinson Syringe available in
Wal-Mart. I can then pull back the plunger and there is no visible residue
and so very little loss of rHGH.

[I agree... but 29 gauge or 28 gauge or 27 gauge don't hurt, either. - Ellis]

----- Original Message -----
From: Bill Saxon <bsaxon@...>
To: <Rejuvenation@egroups.com>
Sent: Tuesday, May 30, 2000 2:35 PM
Subject: Re: [Rejuvenation] First Injection... math quiz...

> Ellis,
>
> Since the diluent and the powder come in a sealed container with
Genotropin
> and I mix this within the "pen" when I am ready to begin use can I not
just
> inject 1 IU as marked on the syringe without any computation? I don't
have
> to make a computation of how much saline to add to a given number of mg.
> It is already on the "pen" information that one "pen" contains 5.8 mg or
> 15.5 IU. I appreciate the help. I am beginning to get confused about
this
> as simple as it may be.
>
> [Bill, of course if it is marked on the syringe, I am sure they probably
> got it right, so... yes, I think you can use that to inject without any
> computation. Excuse me that I am trying to answer your question, but I
> can't actually "see" the pen, and I have never actually seen one. I think
> it is meant to be very simple, so don't get confused. Use the markings
> on the syringe, if it shows the i.u.'s (I suppose, also, that it is
> 17.5 i.u.'s as you said before, and not 15.5 i.u.'s) - Ellis]
>
> ----- Original Message -----
> From: Bill Saxon <bsaxon@...>
> To: <Rejuvenation@egroups.com>
> Sent: Tuesday, May 30, 2000 9:46 AM
> Subject: Re: [Rejuvenation] First Injection... math quiz...
>
>
> > The powder goes into solution and so the volume remains that of the
> diluent, if I remember my chemistry correctly. Is this not correct?
> >
> > [I don't know, but I will suppose it is correct. - Ellis]
> >
> > You can figure it based on the mg of the substance or the ml of the
> diluent, but I don't feel any finagle factor is called for. I use
> Genotropin which comes in a "pen" that contains 5.8 mg of rHGH and 17.5 IU
> of diluent (1 mg = 3 IU so 5.8 times 3 = 17.6 IU)
> >
> > The insert that came with the drug said it was approximately 17.5 IU per
> > "pen". I use a 50 IU needle so that ten lines on the needle equals 1
IU.
> >
> > Help us out Ellis.
> >
> > [Don't confuse the gymansium with the magnesium. The diluyent is not
the
> > i.u.'s The 5.8 mgs of rHGH is equal to 17.5 i.u. (or 17.4, but not 17.6
> i.u.), because that is the definition given to it... it doesn't matter how
much
> > diluyent, it is always going to be 3 i.u.'s per mg. of rHGH... So... to
> > figure out how much of the diluyent is 1 i.u., I need to know how much
> > diluyent you use, and I don't know that from the above statement.
> Whatever you use, divide that amount by 17.5 and you will have 1 i.u. -
Ellis]
> >
> >
> > ----- Original Message -----
> > From: <no1tomkat@...>
> > To: <Rejuvenation@egroups.com>
> > Sent: Saturday, May 27, 2000 10:03 AM
> > Subject: Re: [Rejuvenation] First Injection... math quiz...
> >
> >
> > > In a message dated 05/26/2000 10:38:50 PM Pacific Daylight Time,
> > > drh@... writes:
> > >
> > > << drh@... >>
> > > I got it figured. If you use 1.5cc's you will be at a one i.u. to one
> > > tenth c.c. ratio. However, the powder seems to absorb some water and
> not
> > add to the total volume. So, try about 1.8cc's and one tenth of a cc
> equals
> > one i.u. Makes it simple then.
> > >
> > >
> >
> >
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