[Verse 1]
Alpha-two-delta, that's the calcium channel
Voltage-gated, presynaptic, let me break down the panel
Gabapentin binds it, pregabalin does too
Structural analogs of GABA but they don't act like GABA do
They don't hit the GABA receptor, that's the trap for the naive
They quiet the excited neurons, dampen signals they perceive
Reduce glutamate release, tamp the pain transmission down
Four gabapentinoids total — gabapentin wears the crown
Then pregabalin, gabapentin enacarbil, mirogabalin rounds it out
Extended release, prodrug forms, this whole class carries clout
[Chorus]
Alpha-two-delta is the lock, gabapentinoid is the key
Renal dosing mandatory — kidneys clear it, so adjust the creatinine degree
Postherpetic neuralgia, diabetic neuropathy — yeah the evidence hits hard
Fibromyalgia too, but sciatica and low back? Evidence is scarred
Sedation, dizziness, edema packing weight on
Combine with opioids — FDA says the respiratory brakes are gone
[Verse 2]
Titrate slow, that's the clinical commandment
Start low in the evening, battle the sedation management
Gabapentin dose three times daily, renal function changes everything
GFR drops below sixty, you cutting back the dosing
Pregabalin's more bioavailable, linear kinetics clean
Gabapentin absorption saturates — that distinction's what the boards convene
Misuse potential creeping up, especially in opioid-dependent folk
Euphoria augmentation, street value — this ain't a joke
Schedule five, pregabalin, some states escalating gabapentin too
Pharmacy monitoring programs watching what these prescribers do
[Chorus]
Alpha-two-delta is the lock, gabapentinoid is the key
Renal dosing mandatory — kidneys clear it, so adjust the creatinine degree
Postherpetic neuralgia, diabetic neuropathy — yeah the evidence hits hard
Fibromyalgia too, but sciatica and low back? Evidence is scarred
Sedation, dizziness, edema packing weight on
Combine with opioids — FDA says the respiratory brakes are gone
[Bridge]
Perioperative role got reconsidered, pulled back from the multimodal throne
Opioid-sparing benefit real but respiratory risk wasn't fully known
Elderly patients, sleep apnea, concurrent benzos in the mix
The math on pulmonary depression don't forgive those kinds of tricks
So weigh the risk, individualize, blanket protocols are obsolete
Mechanism's elegant but clinical nuance is the receipt