Side effect
Side effects can mean wrong medication, wrong dose, wrong diagnosis, or an unaddressed medical contributor. Not all side effects mean stop. Some mean the body needs to be checked first.
Modus Operandi
I do not switch psychiatric medication until I know what problem the medication is being asked to solve
Medication failure is not always medication failure. Before changing a prescription, the body, the sleep, the labs, the diagnosis, and the history all need to be in the room.
The Problem
The medication may not be the whole problem
A patient who has tried three antidepressants without adequate response is not necessarily treatment-resistant. They may have untreated sleep apnea, low ferritin, a thyroid problem, a different diagnosis than the one they were given, or a substance pattern that no one fully asked about.
A patient whose stimulant stopped working may be under-eating on a GLP-1 medication, sleeping five hours most nights, drinking too much caffeine, or operating above the dose's therapeutic window.
The reflex to switch or escalate is understandable. It is not always the right move first.
What I check before changing medication:
- Thyroid function — TSH, free T4, free T3 when relevant
- Ferritin — stored iron, not just hemoglobin
- B12 and folate
- Vitamin D
- Complete metabolic panel
- A1c or fasting glucose if metabolic risk is present
- Sleep study or sleep apnea risk assessment
- Medication timeline — what was tried, at what dose, for how long, and what happened
- Prior diagnoses and which symptoms they explain
- Substance use — caffeine, alcohol, cannabis, stimulants
- GLP-1 medications, hormones, supplements, and peptides
- Mood safety history including bipolar-spectrum symptoms
Decision Map
What the medication failure signal is actually telling me
Each failure pattern points in a different direction. The correct next move depends on which pattern is present — not on the assumption that a different medication is always the answer.
Partial response
Partial response often means the medication is addressing one layer. Sleep, labs, nutrition, another diagnosis, or substance patterns may be the second layer. Adding a second medication before checking is premature.
No response
No response warrants reopening the diagnosis. The medication may be right for the wrong problem. The body may be interfering. The original diagnostic picture may have been incomplete.
Activation or worsening
Worsening anxiety, irritability, insomnia, or activation on an antidepressant or stimulant is not always a side effect to push through. It can be a diagnostic signal — including bipolar-spectrum risk that was not part of the initial evaluation.
Sleep, nutrition, or lab contributor
Untreated sleep apnea, low ferritin, thyroid disease, B12 deficiency, under-eating from GLP-1 use, and caffeine or substance load can all make a medication look ineffective. These should be checked before the medication is blamed.
Diagnosis mismatch
When medication trials have been multiple, varied, and consistently disappointing, the more likely explanation is a diagnosis problem than a treatment-resistant condition. Reopen the differential.
When A Switch Makes Sense
Changing medication is sometimes exactly right
When the body has been checked and the clinical contributors have been addressed. When the diagnosis is accurate and the medication mechanism does not match the diagnosis well. When side effects are limiting despite dose adjustments and an adequate trial. When a clearer diagnostic picture points to a different pharmacological target.
A medication switch after a complete review is a different clinical decision than a switch because the first try did not work fast enough.
When The Diagnosis Needs Reopening
Multiple failed trials are a diagnostic signal
When multiple medications across multiple classes have all produced disappointing results, the more useful question is not which medication to try next. It is whether the diagnosis explains the pattern.
Unrecognized bipolar spectrum, ADHD, anxiety with a medical driver, or a mixed presentation can all generate repeated psychiatric medication failures. The evaluation needs to be reopened, not the prescription refilled.
What To Bring
What to bring to a medication review
The medication list — every medication, current dose, and how long it has been prescribed. The prior medication list — what was tried, at what dose, for how long, and what happened. Labs from the past year if available. Sleep pattern and any sleep study history. Caffeine, alcohol, cannabis, supplement, and peptide use. GLP-1 or hormone use if relevant. Prior diagnoses and which symptoms they felt accurate or incomplete. The symptoms the patient is embarrassed to say out loud.
The cleaner the history, the faster the pattern appears.
Book a Medication Review With Diagnostic Clarity
Bring the full history — medication timeline, labs, sleep, diagnosis, and what has not worked. We will look at the pattern before deciding on the next move.
Request Medication Review