MORE ON TIMING BETWEEN DOSES
THE MOST IMPORTANT VARIABLE IN TREATING
PARKINSON’S WITH CARBODOPA/LEVODOPA
BY SAMUEL D. MOORE
I would like to offer my dose profile program for sale. However I am afraid too many
would try to use it to fine tune their dose protocol without the advice of their neurologist.
It would be better to convince the qualified neurologist to use it as a tool in fine tuning
the individuals protocol to maximize the therapeutic effects and minimize the dyskinesia.
So far I have come against a blank wall. I personally am not a doctor and do not know
the important therapeutic levels of the medication. All the profile plotter does is give
you a feel as to what phase of the profile you are in for comparison with one’s symptoms.
The plotter is very precise but limited in accuracy due to the many variables in a humans
own diet, health, and numerous other undefined variables.
It took me awhile with lots of trial and error to realize how simple the model could be. It
ended up that I divided the day into 96, 15 minute periods. Using a linear model I
inputted the absorption of levodopa into the bloodstream. The published absorption time
is 1 hour. As a result I had a model of the input to the bloodstream during the day. To
this I applied the half life elimination rate. I then plotted the result using a sample every
15 minutes. The published half life of the levodopa is 1,5 hours.
In order to put as much flexibility into the program as possible, I allowed the user the
flexibility of changing the absorption time in .5 hour increments. The half life can also
be modified. I allowed for up to six doses per day. Each dose can be a different value..
The time between doses can be input in 15 minute increments. The time between doses
can be different for each pair of doses.
The program requires a spreadsheet program such as Excel or WPS. I have not tested it
with Excel.
I have not been able to get an answer to the question of what is the real goal of getting
me to the maximum dose I can tolerate. Would you get the same results by finding a
comfortable level? What is the most effective, the maximum peak dose, the maximum
average dose. the total dose, or some other criteria? What is a therapeutic level of
levodopa?
No comments:
Post a Comment