ADD, ADHD Medication: Find The Sides of the Therapeutic Window.

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7 Essential Tips to Find Those Effective Sides of the Therapeutic Window When Treating ADD/ADHD

The ‘Sides of the Window' are Puzzling and Require a Few More Office Questions.
The reason to ask the questions is simple: we want to know exactly how the medication is working in the context of time of day, duration of effectiveness, and predictable expectations from the specific medication in question. I've been talking about the Top and Bottom of the Window for some time now, so let's check out the sides.

The simplified version of that statement: Cookie cutter medicine based uponweight, age, body size is outdated, and simply ineffective.  – So let's get the details right every time by starting from the same place using the same predictable grid for measurement of effectiveness. These 7 Tips for the Sides of the Therapeutic Window, coupled with measurements from my other articles here on 7 Tips from the Top and the Bottom of the Therapeutic Window will outline precise treatment objectives. I have been using these ‘Window Strategies' with thousands of patients for more than 12 years, and I can assure you, they work like a correctly timed clock. Predictable outcomes should be the standard of care.

The 7 Tips For The Sides of The Therapeutic Window for Stimulant Medications.
1. The Sides of the Window Are Based Upon Time: The Expected DOE – Duration of Effectiveness of
that specific medication for that  specific persons metabolic rate, and must be customized for every person from the outset and throughout the duration of treatment. Every person burns medications at different rates that cannot be predicted by superficial appearances of weight or size. I have an ex-Navy [Nuclear] Commander who stands about 6'6,” and looms over me, – has to duck when he comes in the door, – he takes only Adderall 10 mg XR and the DOE is a reasonable 10 hr. We want to have a specific match between expected duration and clinically effective duration.

2. Know the Medication DOE Expectations from the Outset:
Authorities and studies disagree on some of the next points on specific medications I am about to discuss. Pharmaceutical companies have done their homework, and are focused on these same DOE objectives, – I simply disagree with some of their DOE findings based upon my own
abundant office experience. Many studies range in the thousands of patient hours over years of treatment using a determined focus on this'Window' grid. See the 7 Tips for the Top of the Window Article for more details on specific medications.

3. Start Working: Measure Precisely the Time DOE At Every Meeting:
Easy questions: “When did you take it and when does it stop working?” If taken at 7 AM and it lasts until 3 PM – that is the DOE. The Math is Simple:5 hrs in the AM + 3 in the PM = 8 hrs. A medication might work for 8 hrs, but still keep the person out the Top of the Window if the IR is pushed too high.

4. The First Side Objective – AM Onset:
All meds should be working in 30-45 min after taking the medication.
IR [Immediate Release] Tablets have a fast onset, but the sides of the window are too narrow, and the DOE [Duration of Effectiveness] Is out just too fast – meaning it simply lasts only a short part of the day. IR meds need  2-3 times a day dosing because the DOE is far too short. If the AM Onset is more than 45 min the dose is either too little, it isn't  working at all, or it can be too much – see point 4 of the 7 Tips for the Top.

5. Regulating the AM Onset: Breakfast is Essential, Protein Breakfast Works Best More Often:
With meds, since we are now paying attention to the rate of metabolism, the DOE, we are much more interested in “rate limiting steps.” Breakfast is an imperative rate limiting step that is essential for all psych meds to prevent irritation of the gastric mucosa [stomach lining]. With breakfast that early side of the ‘Window' is more gentle, and less involved with uncomfortable peaks of medication excess.

6. The Second Side Objective – The PM Release – When They Stop Working:
The extended release capsules from Concerta to Adderall XR are all mechanically released, and have unpredictable release times based upon acid base variables in the stomach and bowel – and upon the transit time of the bowel contents. Long transit time often means greater sensitivity to meds and a relative accumulation of meds over time, with a narrowing of the ‘Window.' Metabolic challenges with bowel function almost always change the PM release time, when the meds stop working. Vyvanse is not as vulnerable to rate changes based upon acid/base balance or transit time.

7. The Mystery Objective: The PM Release with Vyvanse:
Vyvanse deserves it's own tip because it is so effective, with such an excellent, predictable 12-14 hr DOE. Think of this simple point when measuring the DOE with Vyvanse – the metabolically released stimulant is so different that many don't “feel it working” and therefore miss when it “quits working.” Remember with Vyvanse: look for the original cognitive, “mental” objectives, not the somatic, buzzy effects. When Vyvanse quits in the PM the ability to finish tasks is gone.

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cp


6 Comments

  1. Eloise says:

    Hello Dr. Parker,

    I have a 3.4 year boy who had problems in his 3k class and was about to be termianted from school: running, temper outbursts, shouting no no repeatedly. The teacher could not control him. I took him to counselor and worked on time-outs etc but it really did not work. I then took him to the pediatrician referred by the counselor and he was diagnosed with ADHD with anger problems and was given tenix. Started out with half of a tablet then worked up to 3/4. He was able to go back to school in January and was actually starting to color and participate in class. At the 2 week follow-up with the doctor, he was put on Intuniv 1 mg but with “boosters” of tenix 1/4 mg. Well it became apparent at school, that he needed the tenix boosters up to 1/2. So I would give him the Intuniv 1mg and tenix 1/2 mg at 7 am in the morning and this worked fine. It would start wearing off after naptime and around 2pm he would act up but he never got to the point of pre-medication behavior..he was controllable. After a 2 week telephone follow-up I was told by the dr to give him 2 mg of Intuniv in the morning for a week. I started and at school he had rough days. Again his behavior never got to the pre-medication days but it was getting close. He was not transitioning well and would get mad when he was told to go on to another project. By the 4th day on the 2 mg of Intuniv regime, he was starting to have bad temper tantrums at home and starting to shout no no no like he did before and the hyperactivity was getting more apparant. I called the doctor after a week, as I was told, and discussed the matter with the nurse and told her I needed a re-fill since I no longer had Intuiniv since i was doubling the dosage and explained the problems my son was having at school and at home. I suggested that he return to 3/4 of tenix since that seemed to work fine. After talking to the doctor, the nurse informed me that he may be having an “overdose” and to take him off the medication. I have an appointment in 5 days for a follow-up. Since I have taken him off the meds he has reverted to his old behavior and I have kept him from school. I read that intuniv is very good but the 2 mg a day is not having an effect on him and it actually affected his sleep–he did not want to go to sleep at night and would wake up around 4 or 5 am ready to play. Does he need a higher dosage of Intuniv due to his metabolic rate or could it be that tenix is a better fit for him? Please help.

    • Eloise,
      The very most challenging folks to correct with all of these meds are the younger children. Having said that I have personally seen many who do very well with Intuniv. The problem is the Narrow Therapeutic Window, as they are so small the dose is either too much or too little. The tiny Tenex add on doses are helping get that precision. This one requires close work with your med team, and my own idea would be to stay with micro adjustments if they work, as it did seem helpful, and the dose up appears to have been to much – not a reason to stop all together.
      cp

  2. marisol says:

    i have a 9 year old she been taking focallin15mg xr for a while now but i give it to her at 7 30 everyday and is only efective till 12 pm they prescriber 2mgls of intuniv a day she only weighs 61 pounds is it to much medicine?

    • Marisol,
      No those doses are not a problem for most folks – it all depends on each person’s metabolic rate and underlying ability to burn the medication effectively.
      cp

  3. Eddie,
    Thanks for your follow, and your interesting question – I will do a full post on that one soon, as I am covering all of these ‘Window’ issues piece by piece…

    Bottom line:
    Not a bell curve per se, not a bell thru-the-day as the delivery of insufficient, or too much goes on all day – most often. The bell does occur [and by the way read my post on beyond the bell curve: on “The Black Swan”] in that way, but can occur in that the top is often gradually arrived at – so we have to take about 2 weeks between increases, unless absolutely nothing is happening.
    cp

  4. Eddie says:

    Thanks for the help doc. I have been an avid reader for the past couple of weeks as I try and learn about this “window”.

    My 16 yo daughter was very recently diagnosed with ADD. We started her on 30 mg of Vyvanse on 10/31/08 and have been trying to find the window you describe.

    Could you give a graphical description of how DOE behaves? Is it a bell shaped curve? How does increasing dosage effect the shape of such a curve? I am asking because it would seem to a layperson (like myself) that you might blow out the top of the window in an effort to increase DOE…