PFC Podcast 277: Multimodal Analgesia - Making Your Limited Narcotics Last Longer in Prolonged Field Care

In this must-listen episode, Dennis sits down with Dr. Jon Andrews—former 5th and 20th Group Special Forces medic turned Duke-trained anesthesiologist (pediatric & cardiac fellowships)—to tackle one of the biggest headaches in austere medicine: you have a tiny box of opioids and ketamine, a long mission, and a patient who needs to stay alive AND comfortable.

They break down exactly how to stretch every milligram using real OR strategies adapted for prolonged field care: patient-specific planning, smart titration, multimodal synergy, regional blocks, ketamine myths, and when (and how) to layer non-narcotics without crashing your patient or your supply.

Why this episode matters: Acute pain becomes chronic pain. Chronic pain leads to opioid dependence, PTSD, and worse outcomes. In the field, your choices today shape your patient’s tomorrow—and whether you still have meds left when the next casualty shows up.

Key Takeaways

• Start low, titrate smart. Cut your first dose in half on sick or unstable patients. You can always give more—never the other way around.
• Multimodal is mission-critical. Hit pain from every angle (blocks + ketamine + acetaminophen + judicious NSAIDs) to dramatically reduce opioid requirements and prevent chronic pain pathways.
• Ketamine IS an analgesic. It’s not just dissociation—it’s an NMDA antagonist that blunts central sensitization and has proven opioid-sparing effects.
• Schedule your non-opioids. Acetaminophen (1 g IV/PO/PR q6h) and longer-acting adjuncts form your baseline; use fentanyl or morphine only for breakthrough.
• Blocks beat everything—if you can do them. Pre-emptive regional anesthesia (when feasible) is the single highest-yield move before surgical stimulus hits.
• Monitor like your life depends on it. Heart rate, blood pressure, and respiratory rate are your best pain score when the patient can’t talk.
• Plan for worst-case evacuation. Bring more than you think you’ll need and dose for the opioid-naïve or opioid-tolerant reality in front of you.

• Why treating hypertension in the OR (or field) almost always starts with fixing pain first
• The “start low, see response, add more” mantra every austere provider needs
• Why Tylenol often performs as well as morphine in blinded ED studies (and why your patients still doubt it)
• Real talk on ultrasound-guided blocks in 2011 vs. today—and why proficiency still matters
• The dangerous synergy of opioids + benzos + ketamine on respiratory drive
• Why you must get comfortable decreasing doses, not just ramping them up

Chapters

• 01:55 – The austere reality: limited narcotics and why your favorite med won’t last forever
• 03:37 – OR planning vs. field reality: opioid-naïve vs. chronic users
• 05:57 – Multimodal analgesia explained (blocks, ketamine, Tylenol, NSAIDs, dexmedetomidine)
• 08:28 – Patient & mission factors that should drive your loadout
• 12:23 – Golden rule: start low, titrate to effect, monitor vitals
• 15:05 – Sick-patient hack: cut your mental dose in half
• 16:01 – Is ketamine actually an analgesic? (NMDA, opioid-sparing, PTSD data)
• 19:12 – Extending your supply: bolus vs. infusion, redosing strategy
• 24:27 – First-line multimodal choices in the field
• 27:43 – Juggling multiple agents: timing, scheduling, and longer-acting blocks
• 30:15 – Regional anesthesia timing—pre-emptive is king (post-injury limitations)
• 32:48 – Ultrasound & blocks in the current PFC world
• 35:08 – Safety considerations for adjuncts (liver, kidneys, bleeding, alcohol)
• 36:59 – Bang-for-buck data on Tylenol vs. morphine
• 38:55 – Practical integration: layering Tylenol/ketamine with fentanyl titration
• 41:54 – Getting comfortable titrating down (and why pain scores can lie)
• 42:53 – Final wisdom: use everything you’re comfortable with.

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