| Course | NU 670 Advanced Psychopharmacology and Health Promotion |
|---|---|
| Unit | Unit 3 |
| Paper type | Whole regimen interaction screen |
| Length | About 1,020 words, 6 pages |
| Format | APA 7 student paper |
| School | Herzing University |
| Program | MSN Psychiatric Mental Health Nurse Practitioner |
| Updated | October 2026 |
Free sample paper for NU 670 Unit 3
Whole Regimen Interaction Screen for One Outpatient on Olanzapine and Sertraline: Ten Items, Including the Ones Nobody Wrote Down
Student Name
Department of Nursing, Herzing University
NU 670: Advanced Psychopharmacology and Health Promotion
Instructor Name
February 4, 2026
Whole Regimen Interaction Screen for One Outpatient on Olanzapine and Sertraline: Ten Items, Including the Ones Nobody Wrote Down
The Person and the Full List
Ms. R. is a composite 38-year-old woman with schizophrenia, stable for two years, and a depressive episode treated over the past year. She comes to the outpatient psychiatric clinic for a routine visit. Her record lists four medications: olanzapine 15 mg at bedtime, sertraline 100 mg daily, lisinopril 10 mg daily, and metformin 500 mg twice daily, started last year for prediabetes after weight gain. When asked specifically about everything she takes, including things bought without a prescription and things other clinicians started, she added six more: omeprazole 20 mg daily bought over the counter for heartburn, ibuprofen 400 mg on most weekends for back pain, St. John's wort, started a month ago on a friend's advice for mood, melatonin 3 mg and diphenhydramine 50 mg at night for sleep, and ciprofloxacin, prescribed two days ago at an urgent care clinic for a urinary tract infection. She also smokes a pack of cigarettes a day, smokes cannabis most evenings, and says she wants to quit cigarettes next month.
The full regimen, therefore, has ten items plus two kinds of smoke. The screen below works through the pairs that matter, most urgent first.
How the Screen Was Done
Each of the ten items and both kinds of smoking were checked against every other, which gives more than sixty possible pairs. Rather than rely only on an electronic interaction checker, which flags many pairs of little importance and misses items not entered, the screen worked by mechanism: for each item, its clearance pathway, whether it inhibits or induces any pathway, and its pharmacodynamic effects, such as serotonergic, anticholinergic, sedative, antiplatelet, or renal. Pairs sharing a pathway or an effect were examined and then ranked by the likely harm and how soon it could occur. The hospital's interaction database was used afterward as a check and flagged no pair the mechanism screen had missed, while flagging several the screen judged minor.
1. Ciprofloxacin and Olanzapine: Act Today
Olanzapine is cleared mainly by CYP1A2, and ciprofloxacin inhibits CYP1A2. Over a seven-day course, olanzapine levels can rise, increasing sedation, orthostatic hypotension, and anticholinergic effects. Ms. R. mentioned feeling unusually drowsy yesterday. The first question is whether ciprofloxacin is the right antibiotic for an uncomplicated urinary tract infection at all; current practice generally reserves fluoroquinolones for situations where alternatives cannot be used. Action: contact the urgent care prescriber today to discuss switching to an alternative such as nitrofurantoin, if the culture and her history allow. If ciprofloxacin continues, counsel about drowsiness and dizziness on standing, and consider holding or reducing the olanzapine dose for the remaining days in discussion with the prescriber.
2. St. John's Wort and Sertraline: Stop the Supplement
St. John's wort has serotonergic activity, and combining it with a selective serotonin reuptake inhibitor increases the risk of serotonin toxicity, which can range from tremor and agitation to a life-threatening syndrome (Boyer & Shannon, 2005). St. John's wort also induces several drug-metabolizing enzymes and transporters, which can lower levels of other medications, and interactions with prescribed drugs are well documented (Izzo & Ernst, 2009). Action: advise stopping St. John's wort; ask about her mood, since she started it because she felt worse, which may mean the depression needs reassessment.
3. Smoking, Cannabis, and Olanzapine: Plan the Quit Date
Smoked tobacco induces CYP1A2 through the polycyclic aromatic hydrocarbons in the smoke, and smokers have substantially lower olanzapine concentrations than non-smokers (Tsuda et al., 2014). Smoked cannabis contains similar compounds. When Ms. R. stops smoking cigarettes, olanzapine levels are likely to rise over one to two weeks as the induction wears off, which could cause oversedation and more weight gain. Nicotine replacement does not induce CYP1A2. Action: support the quit attempt fully, since smoking is a far larger risk to her health than this interaction; schedule a visit one to two weeks after the quit date to check for sedation and consider a lower olanzapine dose; and ask whether her cannabis use will change at the same time.
4. Ibuprofen With Sertraline and Lisinopril: Two Separate Risks
Sertraline reduces platelet serotonin, and taking an SSRI alongside an NSAID raises the risk of upper gastrointestinal bleeding well beyond either alone (de Abajo et al., 1999). Her omeprazole, although taken for heartburn, partly reduces that risk. Separately, ibuprofen can reduce the effect of lisinopril on blood pressure and, especially with dehydration, impair kidney function. Action: suggest acetaminophen for back pain, and ask her primary care clinician to review the back pain and her blood pressure.
5. Diphenhydramine and Olanzapine: Stacked Anticholinergic and Sedative Effects
Olanzapine has anticholinergic and antihistamine activity; diphenhydramine adds more of both. Together they increase sedation, dry mouth, constipation, and, at higher exposure, confusion. Constipation from olanzapine can be serious. Action: stop diphenhydramine; address sleep through sleep hygiene and continued melatonin, and review whether the insomnia reflects depression, nicotine withdrawal later, or olanzapine timing.
6. Items Screened and Judged Minor or Beneficial
Omeprazole modestly induces CYP1A2, which could slightly lower olanzapine levels; this is minor and does not require action, though it should be noted if omeprazole is stopped. Sertraline and olanzapine have no clinically important pharmacokinetic interaction at these doses. Metformin with olanzapine is intentional: metformin is used to limit antipsychotic-associated weight gain and glucose changes. Melatonin has no important interactions with this regimen. Lisinopril and metformin do not interact in a way that requires action, though kidney function, which both depend on, should be checked with her next labs.
Summary of Actions
Today: call the urgent care prescriber about the antibiotic; advise stopping St. John's wort and diphenhydramine; suggest acetaminophen instead of ibuprofen. Within a month: plan the quit date with a follow-up visit one to two weeks after it. Record: update the medication list with all ten items and both kinds of smoking, and ask at every visit, because this list changed in the last month without anyone who prescribes her antipsychotic knowing. The regimen as recorded had no concerning interactions; the regimen as taken had four.
References
Boyer, E. W., & Shannon, M. (2005). The serotonin syndrome. New England Journal of Medicine, 352(11), 1112-1120. https://doi.org/10.1056/NEJMra041867
de Abajo, F. J., García Rodríguez, L. A., & Montero, D. (1999). Association between selective serotonin reuptake inhibitors and upper gastrointestinal bleeding: Population based case-control study. BMJ, 319(7217), 1106-1109. https://doi.org/10.1136/bmj.319.7217.1106
Izzo, A. A., & Ernst, E. (2009). Interactions between herbal medicines and prescribed drugs: An updated systematic review. Drugs, 69(13), 1777-1798. https://doi.org/10.2165/11317010-000000000-00000
Tsuda, Y., Saruwatari, J., & Yasui-Furukori, N. (2014). Meta-analysis: The effects of smoking on the disposition of two commonly used antipsychotic agents, olanzapine and clozapine. BMJ Open, 4(3), Article e004216. https://doi.org/10.1136/bmjopen-2013-004216
Reading the NU 670 Unit 3 instructions
Unit 3 asks you to screen a complete medication regimen, including over-the-counter drugs, supplements and substances, for interactions. Expect to present the full list, explain your screening method, report clinically significant interactions with mechanism and action, note minor ones and summarize what to do. Many versions use a composite patient. Check whether your section limits how many interactions to report in detail. The list should include what the patient takes but did not mention at first, such as supplements or antihistamines for sleep. Prioritize by urgency rather than by order found. Each significant interaction needs a mechanism, an expected effect and a specific action, not just a warning label from interaction software.
How this NU 670 Unit 3 example is built
The screen opens with the patient and every item she takes, including items gathered by asking specifically about supplements, sleep aids and smoking. The method section explains how pairs were checked and how significance was judged. Interactions are then reported in order of urgency, each with a heading that states the action, such as act today or stop the supplement. Each entry gives mechanism, expected effect and the plan. The minor items section records interactions judged unimportant, which shows the screen was complete. The summary lists actions by time: today, at the next visit and ongoing. The structure makes the screen usable in a clinic and shows the grader the reasoning behind each decision.
NU 670 Unit 3 rubric: what full points look like
Herzing's rubric for a regimen screen usually covers the completeness of the medication list, the screening method, the accuracy of interactions, prioritization, the action plan and writing. Completeness points reward over-the-counter drugs, supplements and substances. Accuracy and mechanism are checked carefully, and each significant interaction should name the pathway or pharmacodynamic effect involved. Prioritization criteria look for urgency-based ordering. Action plan points go to specific steps with timing. Minor interactions noted briefly can earn credit for thoroughness. De Abajo's study of SSRIs and bleeding and Boyer and Shannon on serotonin syndrome belong in the APA 7 references. A screen that records which pairs were judged minor, and why, shows the reviewer that nothing was skipped.
NU 670 Unit 3 help before you submit
The usual shortfall in a Unit 3 regimen screen is checking prescription drugs alone and missing supplements, sleep aids and substances. Another frequent problem is reporting every interaction software flags without judging significance. Students often state interactions without mechanisms. Actions are vague, such as monitor the patient. Urgency is not considered, so a dangerous interaction sits below a minor one. The patient's actual use is ignored, such as smoking plans. Finally, ask about what the patient did not list, because graders reward screens that show the clinician dug for the full regimen, and the most important interaction is often the one nobody wrote down. Ciprofloxacin and olanzapine is a good test: the danger appears only if the screen includes the urgent care prescription.
Get a NU 670 Unit 3 example written to your instructions
Send the Unit 3 instructions and the rubric from your NU 670 classroom, with any regimen shape the screen should work through. We write a custom example built on a composite list, severity criteria fixed in advance, flagged pairs given mechanism and direction, and the dismissals argued rather than omitted. Turnaround is 24 to 48 hours and the first custom sample costs nothing.
More NU 670 papers and PMHNP samples
- NU 670 Unit 1: Receptor activity brief
- NU 670 Unit 2: Clearance pathway table
- NU 670 Unit 4: Adverse effect derivation record
- NU 670 Unit 5: Metabolic monitoring protocol
- NU 670 Unit 6: Special population handling brief
- NU 670 Unit 7: Lifestyle and psychoeducation package
- NU 670 Unit 8: Regimen lifecycle dossier
- NU 671 Unit 3: Diagnostic weighting table
- NU 672 Unit 3: Session transcript analysis
- NU 673 Unit 3: Psychoeducation session outline
- NU 674 Unit 3: Comorbidity sequencing plan
NU 670 Unit 3 questions, answered
Should the screen use a real medication list?
No. Build a composite from patterns you have seen, with no identifiers, no dates and nothing traceable to a single encounter. Lists taken from a placement belong in the records of the site that holds them, and reproducing one inside a submitted file creates an exposure no grade is worth. A composite also lets you plant the awkward entries the assignment needs deliberately.
How many interactions should be reported?
As many as have a mechanism and a consequence, which in a realistic regimen is usually a handful rather than the twenty a checker returns. Length is not the measure here. A screen naming four pairs properly, and explaining why eleven others were set aside, shows more command of the material than a list running to a full page.
Do supplements really belong in the screen?
They belong, and leaving them out is one of the recognizable weaknesses in this deliverable. Several widely used products affect clearance enzymes or add to sedation, and few of them reach a pharmacy record. Say where the supplement information came from, cite what you claim about it, and leave any decision about continuing one to the prescriber working from current labeling.
Where can I find a free NU 670 Unit 3 sample paper?
This page shows the whole NU 670 Unit 3 regimen screen for free, ten items checked with mechanisms, urgency and today's actions. A screen built around a different patient or medication list can be written on request.
Can St. John's wort be taken with sertraline?
It is generally avoided. St. John's wort has serotonergic activity, and combining it with an SSRI raises the risk of serotonin toxicity. This sample advises stopping the supplement and explains the symptoms the patient should report.