Creating bespoke nasal sprays
NB: please note all discussion of figures are purely hypothetical and are simply illustrative
First, all this discussion about dosing has been answered above. Choose your nasal spray
(pharmacy method), empty contents, clean. Then fill entirely with saline solution. Now spray normal dosing into the air, keeping count of how many, until the bottle is empty. Take volume of bottle/number of doses available = the volume per dose. Then if using pills I would have thought you would prepare as if for IV to concentrate the active substance. Now the maths. If for example you have already experimented and know that your 5ml bottle will give 30 doses (for example), add your filtered acive solution accordingly (eg - if your usual 'hit' of OC is 20mg, you're looking at turning 600mg of OC into saline solution of 5ml (or 300mg to 2.5 ml, or 150mg to 1.75ml tc etc)....or heed the warnings above and half your normal hit (due to increased efficacy of this method).. Or if you wish to control the dosing better (eg - have a choice of 5/10/15/20 mg OC - giving you the option of 1 to 4 squirts).
A much easier way
(web method) is to to procure an empty 'nasal solution dispenser' from the web-net-work
Where you can get to choose from a selection of bottles, ranging from 0.01-0.5 ml per dose/squirt (+/- 10%). This options allows for more precision and flexibiliy. If you have a high ml per dose ratio (eg 0.1ml per dose) you can opt for a higher dosing bottle to keep the squirting withing an acceptable range (2-5 for a hit). Higher concentrated solutions can be used with the 0.01-0.10 dosing bottles. I woud still experiment, and err of course on the side of caution, if you find your 'end product' is too weak, add incremental ammounts of acitve solution until you hit the sweet spot (taking note of additional quantity added, to facilitate your next bottle prep). Conversely, if results are too strong and 1 squirt has you on your arse, empty bottle into sterile container and add more saline etc (NB - try and keep the process sterile (eg buy sterile saline solution, rinse dispenser with cleaning alchohol etc)
Result - A bottle of innoccuous looking saline solution, a couple of squirts of which will give you the exact dose you require. (you can even print off your own 'pharmacy label' - be creative, call it 'allergeneze', list ingredients, make your own logo, add a 'may cause drowsiness' warning, add a Sanofi logo etc etc)
Iam currently awaiting delivery of a selection of bottles to experiment with creating a methylphenidate nasal doser. I will report back on progress. My plan is to use a 10ml/0.1ml doser bottle, which I plan to fill with a mixture of saline + 100 x 10mg mehylphenidate tabs - and here is where I'm
asking advice from you bluelighters.
First I am assuming a 10mg/ml ratio is fine? I'm thinking yes.
Second, how to turn 100 binder/filler-filled tabs into a pure Methylphenidte solution I can work with. Is there any reason why the IV prep method, upscaled to 100 tabs, wouldn't work? Would CWE, cooking, alcohol come in to the equation? I plan to use plenty of water to dissolve the tablets as I will evaporate off water from filtered/resultant solution, hopefully leaving me with 100 mg pure MPH powder to add to my 10ml saline, add to bottle, shake well, and squirt away!!. Surely worth the effort? Anyone know of a sustance one can add to the solution to aid intranasal absorbption?
This seems to me an excellent method of administration, particulalry for those of us who like insufflating pills. I will edit with updates, any suggestions for improvement of method much appreciated.
If my maths is poor in places I apologise, but hope you get the general gist.
cheers.
'GNOTHI SEAUTON'
AN