Stepwise Approach to Treating Depression: A Guide for PMHNPs

by | Jul 24, 2025 | Best practices, Prescribing tips for treating mental disorders | 0 comments

One of the most stressful parts of being a PMHNP is managing patients who partially respond—or don’t respond at all—to psychotropic medications. Whether it’s antidepressants, antipsychotics, or others, knowing what to do next isn’t always straightforward. That’s why having a stepwise approach to treating depression is so helpful—it gives you a clear framework for decision-making.

First Step: Medication Adherence Check

Before you change the diagnosis or reach for a new prescription, verify the obvious:
Is your patient actually taking their medication?

On more than one occasion, I’ve found myself second-guessing my treatment plan—only to discover my patient wasn’t fully adherent. This can be due to:

  • Unwanted side effects they didn’t want to report
  • Doubt that the medication is working
  • Or they just… forgot

💡 Pro Tip: Ask about both adherence and tolerance at every visit. A quick check-in can save you a lot of unnecessary changes.

What If They Are Adherent, But Still Not Responding?

Once you’ve confirmed adherence and titrated to a therapeutic dose, but still aren’t seeing significant improvement, it’s time to take the next step.

Here’s where a stepwise approach to treating depression really shines. It prevents you from simply “managing symptoms” and supports a clearer path to recovery—for both you and your patient.

Evidence-Based Stepwise Approach to Treating Depression

While this isn’t an exhaustive list of all medication and therapy combinations, here’s a simplified, research-supported framework:

  1. Initiate first-line monotherapy (SSRI, SNRI, etc.)
  2. Titrate to therapeutic dose and allow adequate time (4–6 weeks)
  3. Reassess adherence, side effects, and efficacy
  4. If partial response:
    • Augment with another medication (e.g. bupropion or aripiprazole)
    • Add psychotherapy (CBT or IPT)
  5. If no response:
    • Switch to another antidepressant within the same class
    • Or switch to a different class altogether
  6. Consider referral for further evaluation (e.g. neuropsych testing or specialist input)
  7. Reassess for bipolar disorder or underlying medical causes if treatment resistance continues

🧠 For full APA guidelines, read their practice guideline for the treatment of patients with major depressive disorder.

The Maudsley Prescribing Guidelines in Psychiatry

Other Factors to Consider

  • Co-occurring anxiety: Treating comorbid conditions may be key to improving depression
  • Medical causes: Hypothyroidism, anemia, chronic pain, and more can all impact response
  • Psychosocial factors: Grief, trauma, or unstable environments can limit medication effectiveness

What Are Your Go-To Strategies?

This stepwise approach to treating depression isn’t meant to be rigid. But having a structured path can help minimize stress and maximize patient success.

💬 What strategies do you lean on when first-line treatment fails?

Want More Free Resources?

Visit Stress Free Psych NP for additional tools, blog posts, and free training to help you feel more confident, efficient, and empowered as a psych NP or other provider treating mental disorders.