Pain Flashcards
Addiction
Stong desire/compulsion despite harm
Tolerance
Receptor level issue - more drug needed to stimulate receptor
3 classes of drugs that cause physical dependence, tolerance, and addiction
Benzos, Opioids, Barbiturates
Must always be added to pain regimen
Constipation prophylaxis (mush and push; docusate + senna/bisacodyl)
Biggest predictor of respiratory depression with pain meds
Sedation
Most AEs decrease over time, except…
Constipation
IV Acetaminophen
Ofirmev (addition to opioids can decrease overall opioid dose) - caution with this drug as there is a high risk of dosing errors
Antedote for APAP OD (glutathione substitute)
N-Acetylcystine (NAC) or Acetadote IV
Max dose of APAP per prescription
325 mg
Infant drops/childrens solution concentration
160 mg/5 mL
Max dose APA in children
10-15 mg/kg/dose (max 5 doses QD)
Max dose IBU in children
5-10 mg/kg/dose (max 40 mg QD)
Risk of GI bleed with Steroids and …
NSAIDs
Avoid aspirin in children
Reye’s Syndrome (other NSAIDs are okay to use)
AEs of ASA/Salicylates
GI bleed, renal impairment, increased BP, SJS/TEN (same with APAP), dyspepsia, heartburn
Avoid NSAIDs in patients with
MI history or HF
Stop NSAIDs at least ______ prior to elective surgery
1 week
Slsalate OD AE
Tinnitius
IBU brands
Advil, Motrin
IBU IV
Caldolor
All NSAIDs get dispensed with a…
MedGuide for GI bleed, CV risk, and preoperative bleeds (ex. CABG)
Naproxen brands
Aleve, Naprelan (Rx), Anaprox (Rx)
Vimovo generic
Naproxen + Esomeprazole (to protect the gut)
Diclofenac brands
Cataflam, Voltaren-XR, Zorvolex (nano formulation)
Drugs for gut protection with NSAIDs
Misoprostol (pregnancy category X) and PPIs
Indomethacin AEs
CNS SEs (avoid in psych pts) and GI toxicity
Indomethacin (IR) is commonly used to treat which condition?
Gout
Indomethacin brand
Indocin
Piroxicam brand
Feldene
Piroxicam AEs
GI toxicity and SJS/TEN
Highest risk of SJS/TEN of all NSAIDs
Piroxicam
Ketorolac brand
Spris NS
Ketorolac initiation
Start with IV/IM/Nasal spray before oral
Max treatment duration of Ketorolac
5 days total due to severe GI bleeds, acute renal/liver failure, and anaphylactic shock
Sulindac
Safest NSAID to be used with Lithium
COX-2 selective NSAIDs (highest CV risk, lowest GI risk)
Celecoxib (Celebrex), Meloxicam (Mobic), Etodolac, Nabumetone
NSAID with highest COX-2 selectivity
Celebrex
NSAID contraindicated with sulfonamide allergy
Celebrex
If ASA is used for cardioprotection and IBU is used for pain…
Take ASA 1 hr before or 8 hours after IBU
Opioids agonize which receptor?
Mu
All ER formulations of opioids are…
REMS drugs
Morphine brands
MS Contin (cont- for controlled release), Avinza, Kadian, Oramorph SR, and Roxanol
Do not mix these opiods with alcohol as all of the drug will get dumped at once
Avinza (Morphine), Tapentadol (Nucynta), Oxymorphone (Opana)
Requires dose reduction of 50% when changing to this agent due to active metabolite that is renally cleared
Morphine
Relistor generic
Methylnaltrexone
Relistor only inidcated if
Failed DSS + stimulant laxative
Cross-allergenicity of morphine
oxymorphone, codeine, hydrocodone, hydromorphone, oxycodone
Cross-allergenicity of fentanyl
Meperidine
Cross-allergenicity of tramadol
Tapentadol
If morphine allergy use
Fentanyl, meperidine, methadone, tramadol, tapentadol
Opioid allergy symptoms
Decreased BP, rash, swelling of face/lips/tongue, difficulty breathing
Fentanyl patch brand
Duragesic
Fentanyl patch dosed in
mcg/hr
Actiq lollipop generic
Fentanyl (only for break through cancer pain - like all SL fentanyl formulations)
Not indicated for opioid naive
Fentanyl (must have been on 60 mg morphine x 7d)
Must hold fentanyl patch on for _____ seconds
30
SL fentanyl formulations are ______ drugs
REMS
3 patches that can be flushed
Fentanyl, Butrans, Daytrana
1st hydrocodone only drug
Zohydro ER (Q12h dosing)
2nd hydrocodone only drug
Hysingla ER (Q24h dosing)
Hydromorphone brand
Dilaudid, Dilaudid-HP (high potency), Exalgo (CI in opioid-naive)
Oxycodone brands
Oxeta, Roxicodone, Oxycontin (cont for controlled release), w/APAP (Endocet, Percocet, and Roxicet)
Hydrocodone and Oxycodone are substrates of
3A4
Oxymorphone brands
Opana, Opana ER
Take Opana w or w/o food
Without
Methadone brands
Dolophine, Methadose-liquid
Methadone is a ______ drug
REMS
Most proarrhythmic opioid
Methadone (QT prolongation)
Opioid with variable half lives
Methadone (15-60 hours)
Opioid that lowers testosterone most notably
Methadone
Serotonergic opioid
Methadone, Meperidine, Tramadol, Tapentadol
Meperidine brand
Demerol
Opioid only for acute pain management due to euphoric effects
Meperidine
Active metabolite of Meperidine
Normeperidine (renally cleared - can accumulate in elderly and with renal impairment)
Renal impairment can lead to increased risk of CNS toxicity, including seizures
Meperidine
Codeine can be metabolized differently in people with…..
CYP 2D6 polymorphisims (fast/slow metabolizers) - fast metabolizers get a buildup of morphine which can lead to respiratory depression
AEs with Codeine
GI
Combo Opioid agonists/Norepi Reuptake #s
Tramadol and Tapentadol (activating due to Norepi effects - leading to seizure risk)
Tramadol brands
Ultram, Conzip
Tramadol requires conversion by CYP2D6 and should be avoided with
CYP2D6 inhibitors
Tapentaol brands
Nucynta
Lower GI side effects than other opioids
Tramadol and Tapentadol
Antidote for opiod OD
Naloxone (mu receptor antagonist)
Signs of opioid OD
Somnolence, respiratory depression, cold/clammy skin, pinpoint pupils (miosis), coma/death
Evizo auto-injector
Naloxone for EMS
Naltrexone used for
Alcohol/opioid dependence
Buprenorphine transdermal
Butrans
Butrans indication
Mod-severe pain on patients who need ATC opioid
Buprenorphine
opioid agonist
Suboxone needs _____ DEA for prescribing
X (due to DATA waiver - drug addiction treatment act)
Butrans BBW
QT prolongation
Cyclobenzaprine brand
Fexmid
Antispasmodics with analgesic effects
Baclofen, Cyclobenzaprine, Tizanidine
Antispasmodics that work through sedation
Soma, Metaxalone (Skelaxin), Robaxin
Only muscle relaxant that is controlled
Soma (C-IV)
AEs of all muscle relaxants
Excessive sdation, dizziness, and confusion (AVOID OH)
Poor 2C19 metabolizers have higher/lower Soma concentrations
Higher
Neuropathic pain agents
Lyrica, Cymbalta, Gabapentin, Amitriptyline
Fibromyalgia Agents
Milnacipran, Lyrica, Cymbalta (SNRI)
Milnacipran brand
Savella
Milnacipran MOA
SNRI
AEs of Milnacipran
Nausea, headache, constipation, dizziness, insomnia, hot flashes
Lidocaine patches brand
Lidoderm
Patch duration
12 h on, 12 h off
ONLY patch you can cut into small pieces before taking backing off and applying
Lidoderm
Capsaicin brand
Zostrix (decreases substance P)
Diclofenac brand
Voltaren
Methyl salicylate (Icy Hot, BenGay, TheraGesic) can cause _________ burns
3rd degree