Alprazolam Solution Question

[Madrus]

-snip-
This post was was a bit incriminating.

 

[DavidWhy]

I don't know. Which makes this the most pointless post I have ever made, and there is stiff competition for that dubious honour, let me tell you.

 

[Madrus]

Ha. Perhaps I should have asked in the "advanced" drug discussion.

 

[Druidus]

Hello, I just wanted some confirmation that this plan would work correctly. If I make a 30mg/30mL Alprazolam/Propylene Glycol 1mg/mL solution, then put that into an amber vial with graduated markings on the dropper. Then I could use that dropper to squirt out 1mL which would equal 1mg.
Is that all I have to do in order to accurately and safely measure this potent alprazolam?

Thanks.
QUOTE]

If you do it accurately, this is the only possible way you could do it, barring a very precise scale.

It should be safe to use that, as long as it is uniformly dissolved, and there is no undissolved precipitate matter mucking things up.

 

[Swimmingdancer]

Yep, sounds good, if you have an accurate dropper. You could also use a syringe to measure more precisely.

 

[cook]

It will work except that I would use a syringe to measure out the doses. If you use a dropper you have to know that the volume of one drop is highly dependent on the liquid, for example water one drop could include something like 0.05 ml but with PG one drop is considerable less, maybe 0.02 ml if I recall correctly (check this).

The volume of a drop is highly dependent on the liquid because of surface tension properties.

 

[Swimmingdancer]

It will work except that I would use a syringe to measure out the doses. If you use a dropper you have to know that the volume of one drop is highly dependent on the liquid, for example water one drop could include something like 0.05 ml but with PG one drop is considerable less, maybe 0.02 ml if I recall correctly (check this).

The volume of a drop is highly dependent on the liquid because of surface tension properties.

Very good point, I didn't even think of that, since he said "with graduated markings on the dropper". Like you can get droppers/pipettes that can hold, say, 5 ml of liquid with graduated markings up to 1 ml in increments of number of drops (normally something like 20 drops or 24 drops depending on the dropper), but the number of drops wouldn't be exactly the same for different liquids. I was thinking 1 ml is 1 ml, so if you didn't have to measure anything smaller than 1 ml, you could just ignore the drop markings and use the 1 ml marking, like you could suck up exactly 1 ml into the dropper. But yeah, it would definitely be much better to use a syringe.