The SP adrenal/HPA-axis protocol is one of the most-prescribed condition-specific patterns in functional medicine, and one where the layered logic matters more than any single product. Drenamin provides the protomorphogen tissue-specific substrate; Cataplex G provides the B-complex cofactors the rebuilding HPA axis needs; Min-Chex addresses the symptom layer (sleep, anxiety, tension). The protocol works because it addresses both the "over-revved" surface symptoms and the "under-resourced" substrate underneath — patterns that frequently coexist in the same patient.
SP Adrenal/HPA Protocol — Core Stack
- Drenamin 1-2 AM with breakfast (protomorphogen substrate)
- Cataplex G 1 AM with breakfast (B-complex cofactors)
- Min-Chex 1 mid-afternoon + 2 bedtime (calmative)
- Catalyn 2 with each meal (foundational backdrop)
- Optional adaptogen: Ashwagandha Forte 1 PM
- Timeline: subjective shifts week 2-3, substantive recovery 60-90 days
The two HPA patterns the protocol addresses
HPA-axis dysregulation presents in two recognizable patterns that frequently coexist in the same patient. Understanding the patterns matters because the protocol's three core products map directly to them.
"Over-revved" — sympathetic activation surface. Anxiety, racing thoughts, sleep-onset insomnia, daytime muscular tension, elevated morning cortisol on a 4-point salivary panel. The nervous system is in chronic activation. Patients describe feeling "wound up" or "unable to settle down." This is the layer Min-Chex addresses — the botanical-mineral calmative provides symptomatic relief while the underlying substrate work happens.
"Under-resourced" — adrenal substrate depletion. Fatigue, low morning energy, post-exertional crash that doesn't recover within a day, low DHEA-S on lab, blunted cortisol rhythm or "flatlined" curve. The HPA axis has been depleted by chronic load and lacks the substrate to mount appropriate responses. This is the layer Drenamin and Cataplex G address — protomorphogen substrate plus B-complex cofactors support the rebuilding of HPA capacity.
Most patients sit somewhere on the spectrum between pure over-revved and pure under-resourced. The protocol's design assumes both layers need addressing because they typically do.
Why Drenamin goes AM, not PM
Drenamin carries adaptogenic activity that can be subtly stimulating in sensitive patients. PM dosing risks sleep disruption. The morning timing also aligns the supplement with the body's natural cortisol rhythm — cortisol peaks in the early morning hours, and supporting adrenal substrate when the gland is most active matches the clinical theory.
The dosing convention is 1-2 Drenamin tablets with breakfast. For severely depleted patients (low DHEA-S, blunted cortisol curve), some practitioners use 3 with breakfast for the first 30 days, then taper to 2. The hard rule: never after early afternoon. A patient who takes Drenamin at 4 PM and reports sleep disturbance has likely identified the cause.
Cataplex G — why the B-complex layer matters
Cataplex G is Standard Process's adrenal-targeted B-complex formulation. The clinical rationale: HPA-axis rebuilding requires substantial B-vitamin cofactor availability — particularly B5 (pantothenic acid) for cortisol synthesis and B6 for neurotransmitter cofactors. Cataplex G delivers the B-complex profile in food-bound form alongside additional pantothenic acid for the adrenal-specific cofactor needs.
For patients with documented methylation issues (MTHFR variants, elevated homocysteine), the SP whole-food B-complex isn't sufficient for the active-folate and methylated-B12 needs of those patients. Layer in Xymogen Methyl Protect 1 AM alongside Cataplex G for the cross-brand methylation support.
Min-Chex for the symptom layer
Min-Chex (valerian root + passion flower + calcium lactate + phosphorus) addresses the surface symptoms — sleep-onset latency, daytime tension, mid-afternoon "wired" feeling. The dosing pattern that works for the HPA protocol: 1 mid-afternoon (around 2-3 PM, when the cortisol curve typically dips and sympathetic activation can spike) + 2 at bedtime (for sleep-onset support).
Critical screening: avoid combining Min-Chex with regular benzodiazepines or alcohol within 2 hours due to additive sedation. For patients on SSRIs there's no direct conflict, but document the medication review in the chart.
46-year-old patient, mixed HPA presentation, 90-day protocol
A 46-year-old female patient presents with anxiety, sleep-onset insomnia, afternoon fatigue, and feeling "tired but wired." 4-point salivary cortisol shows elevated AM cortisol (high-normal), normal noon, low-normal evening, elevated bedtime. DHEA-S in mid-range. Classic mixed presentation with both over-revved and under-resourced elements.
Protocol: Drenamin 2 AM with breakfast, Cataplex G 1 AM with breakfast, Min-Chex 1 at 2 PM + 2 at bedtime, Catalyn 2 with each meal, Ashwagandha Forte 1 PM. Patient education: this is a 90-day work; expect subjective shifts at week 2-3, substantive change at 60-90 days.
Week 2: sleep onset improved (~30 min latency down to 15). Mid-afternoon "wired" sensation reduced. Day 60: anxiety substantially improved, afternoon fatigue largely resolved, sleep solid. Day 90 labs: cortisol curve normalized to expected diurnal rhythm; DHEA-S unchanged but baseline was already mid-range. Patient continued on a tapered maintenance protocol (Drenamin 1 AM, Cataplex G 1 AM, Min-Chex 1 PM bedtime for stress-event support, Catalyn ongoing).
Adding adaptogens — when and which
The core SP stack works on its own; herbal adaptogens add modulatory leverage for many patients.
Ashwagandha (MediHerb Ashwagandha Forte or Gaia Herbs Ashwagandha Root) 1-2 PM. The most-used adaptogen in HPA protocols. PM timing because ashwagandha's calmative-adaptogenic profile supports the evening shift down. Caution in active hyperthyroidism — ashwagandha can subtly increase thyroid function.
Rhodiola (Gaia Herbs Rhodiola Root) 1 AM. The energizing adaptogen — appropriate for under-resourced patients with morning fatigue. AM timing only; PM can disrupt sleep.
Holy basil (MediHerb Holy Basil) 1-2 PM. Modulatory adaptogen with mild calming activity. Useful for chronic-stress patients who don't tolerate ashwagandha.
Don't stack all three adaptogens — pick one. Layering too many adaptogens produces unpredictable effects and diminishing returns.
Lab-guided protocol refinement
4-point salivary cortisol + DHEA-S serum at protocol start gives the clearest baseline picture. Re-test at 90 days to verify progress.
Patterns and interpretation: elevated AM cortisol, normal rest → over-revved morning, Min-Chex with breakfast may help. Flat curve, low everywhere → severe depletion, consider extending Drenamin to 3 AM for first 60 days. High evening cortisol → reverse-rhythm, Min-Chex earlier + sleep hygiene work. Low DHEA-S with normal cortisol → consider DHEA replacement under MD coordination, alongside the SP protocol.
Common mistakes
Five anti-patterns in SP adrenal protocols
- Drenamin after early afternoon. Subtle stimulation can disrupt sleep. Always AM.
- Skipping the symptom layer. Drenamin + Cataplex G alone addresses substrate but leaves the patient symptomatic for weeks. Min-Chex provides the symptomatic relief that keeps the patient engaged.
- Stacking three adaptogens. Pick one. Layering all three produces unpredictable interactions.
- Not addressing the foundational layer. Catalyn + Cataplex F + Tuna Omega-3 underneath provides the foundational nutrition the protocol needs.
- Stopping at 30 days without retesting. The 90-day timeline is real; reassess and document lab-guided refinement.
Frequently asked questions
What's the canonical SP adrenal/HPA protocol?
Drenamin 1-2 AM, Cataplex G 1 AM, Min-Chex 1 mid-afternoon + 2 bedtime, plus Catalyn 2 with each meal as foundation. Address both substrate (Drenamin + Cataplex G) and symptom layer (Min-Chex).
What's the difference between "over-revved" and "under-resourced" HPA patterns?
Over-revved: anxiety, sleep-onset insomnia, elevated AM cortisol. Under-resourced: fatigue, low DHEA-S, blunted cortisol curve. Most patients have elements of both.
Why does Drenamin go AM, not PM?
Subtle adaptogenic activity can disrupt sleep if dosed late. Morning timing also aligns with the natural cortisol rhythm. Never after early afternoon.
How long does this protocol take to produce change?
Subjective shifts at week 2-3; substantive HPA recovery at 60-90 days. Tell patients up front so they don't conclude prematurely it isn't working.
How does this pair with herbal adaptogens like ashwagandha?
Stack them. SP protomorphogen layer + one herbal adaptogen (Ashwagandha Forte PM, Rhodiola AM, or Holy Basil PM) — pick one, don't layer all three.
What labs help guide this protocol?
4-point salivary cortisol + DHEA-S serum at baseline and 90 days. Not strictly required to start, but useful for confirming protocol direction at re-evaluation.
Where to go next
Three companion pieces: the deep-dive on Min-Chex prescribing, Gaia vs Xymogen on the adaptogenic layer, and the DFH cortisol-rhythm protocol for comparison. Supplement Practice's HPA template auto-schedules the AM/PM dosing pattern with the Drenamin-by-2-PM cutoff built in.
