๋์์ ํ
๋์์ ํ์ ํญ๋ถ์, ๊ทผ์ก ์ด์, ์ต๋ฉด, ์์ ์ด์ง ๋ฐ ํญ๊ฒฝ๋ จ ํน์ฑ์ผ๋ก ์์ํ์์ ๋๋ฆฌ ์ฌ์ฉ๋๋ ๊ณ ์ ์ ์ด๊ณ ์ง์ ์๊ฐ์ด ๊ธด **๋ฒค์กฐ๋์์ ํ๊ณ** ์ ๋์ฒด์ ๋๋ค. **์์ ์์ :** * **๋ฐ์ ๊ด๋ฆฌ:** ๋์์ ํ์ ๋์ ์ฆ ์ง์์ํ(status epilepticus) ๋ฐ ๊ตฐ๋ฐ ๋ฐ์์ ์๊ธ ์น๋ฃ๋ฅผ ์ํ 1์ฐจ ์ ํ์ฝ์ ๋๋ค. ๊ทธ๋ฌ๋ ์์ฉ ์๊ฐ์ด ์งง๊ณ ๋ด์ฑ์ด ๋น ๋ฅด๊ฒ ๋ฐ์ํ๊ธฐ ๋๋ฌธ์ ๊ฐ์์ ์ฅ๊ธฐ์ ์ธ ์ ์ง ํญ๊ฒฝ๋ จ์ ๋ก๋ ์ผ๋ฐ์ ์ผ๋ก ํจ๊ณผ์ ์ด์ง ์์ต๋๋ค. * **๊ณ ์์ด ์ฃผ์์ฌํญ:** ๊ณ ์์ด์์๋ ๋ด์ฑ ๋ฌธ์ ๊ฐ ๋ํ์ง๋ง, ํน์ด ์ฒด์ง์ ์ํ ์น๋ช ์ ์ธ **์ ๊ฒฉ์ฑ ๊ฐ๊ดด์ฌ** ์ํ์ด ์์ด ๊ฒฝ๊ตฌ ํฌ์ฌ๋ ๋งค์ฐ ๋ ผ๋์ด ๋ง์ต๋๋ค. * **์ ํ ํน์ง:** ์ฃผ์ฌ์ ์๋ **ํ๋กํ๋ ๊ธ๋ฆฌ์ฝ**์ด ํฌํจ๋์ด ์์ด ์ ๋งฅ์ผ๋ก ๋๋ฌด ๋น ๋ฅด๊ฒ ํฌ์ฌํ ๊ฒฝ์ฐ ์ ํ์, ์๋งฅ ๋ฐ ์ฌ์ฅ ๋ ์ฑ์ ์ ๋ฐํ ์ ์์ต๋๋ค. ๋ํ PVC ํ๋ผ์คํฑ์ ์ฝ๊ฒ ํก์ฐฉ๋๋ฏ๋ก ํ๋ผ์คํฑ ์ฃผ์ฌ๊ธฐ์ ๋ณด๊ดํ๊ฑฐ๋ ํ์ค ์์ก ๋ฐฑ์ ํตํ ์ฅ์๊ฐ ํฌ์ฌ์๋ ์ ํฉํ์ง ์์ต๋๋ค.
์์ฉ ๊ธฐ์ : Diazepam exerts its effects by binding to specific allosteric sites on **GABA-A receptors** in the central nervous system (primarily in the limbic system, thalamus, and hypothalamus). * Binding to the benzodiazepine site โ enhances the affinity of the inhibitory neurotransmitter **gamma-aminobutyric acid (GABA)** for its receptor. * This facilitation โ increases the frequency of chloride channel opening โ influx of chloride ions โ **neuronal hyperpolarization**. * The resulting hyperpolarization leads to profound CNS depression, producing anxiolytic, sedative, muscle relaxant, and anticonvulsant effects.
๋๋ฌผ ์ข ๋ณ ์ฉ๋
- Urine marking and anxiety ยท 0.2-0.4 mg/kg (start at 0.2 mg/kg PO q12h) ยท PO ยท q12-24h
- Spraying ยท 1-2.5 mg per cat ยท PO ยท q8-12h ยท Sedation and ataxia should abate within several days.
- Fast-acting anxiolytic ยท 0.2-0.5 mg/kg ยท PO ยท prn
- Treatment of seizure disorders ยท 0.25-0.5 mg/kg ยท PO ยท q8-12h ยท Do not use if cat has been exposed to chlorpyrifos.
- Halt an ongoing seizure ยท 0.5-1 mg/kg ยท IV ยท prn ยท If cat has a history of receiving insulin, glucose may be more beneficial.
- Maintenance therapy for seizures ยท 0.2-1 mg/kg ยท PO ยท q12h ยท Use with caution; associated with fatal hepatic necrosis. Phenobarbital is preferred.
- Functional urethral obstruction/urethral sphincter hypertonus ยท 1-2.5 mg (total dose) ยท PO ยท q8h
- Functional urethral obstruction/urethral sphincter hypertonus ยท 2.5-5 mg (total dose) PO q8h or as needed, or 0.5 mg/kg IV ยท PO/IV ยท q8h or prn
- Short-term emergency control of severe epileptic seizures ยท Dose not specified in monograph ยท IV/Rectal ยท PRN ยท Short-term ยท Half-life is longer in cats; may be effective as maintenance, but oral use carries high risk of hepatic necrosis.
- Appetite stimulant ยท Dose not specified in monograph ยท PO/IV ยท PRN ยท Short-term ยท Use with extreme caution due to risk of liver injury.
ํฌ์ฌ ๊ฒฝ๋ก
๊ธ๊ธฐ
- Known hypersensitivity to benzodiazepines
- Cats exposed to chlorpyrifos (potentiates organophosphate toxicity)
- Significant liver disease (especially in cats)
- Intra-carotid artery injections (must be strictly avoided)
- CNS depression
- Respiratory depression
- Severe muscle weakness
- Hepatic impairment (may worsen hepatic encephalopathy)
- Long-term treatment of behavioural disorders (due to risks of disinhibition and interference with memory/learning)
์ด์๋ฐ์
- Sedation and ataxia (most common)
- Dogs: Paradoxical CNS excitement/agitation (especially at doses >0.8 mg/kg)
- Dogs: Increased appetite
- Cats: Idiosyncratic hepatic failure (with oral use)
- Cats: Behavior changes (irritability, depression, aberrant demeanor)
- Horses: Muscle fasciculations, weakness, ataxia, recumbency (at doses >0.2 mg/kg)
- Hypotension and phlebitis (with rapid IV injection)
- Sedation
- Muscle weakness
- Ataxia
- Paradoxical excitation and aggression (especially with rapid IV injection or oral overdose in dogs)
- Pain and erratic absorption (IM injection)
- Fulminant hepatic necrosis (cats, repeated oral dosing)
- Thrombophlebitis (associated with propylene glycol injectable formulations)
์ฝ๋ฌผ ์ํธ์์ฉ
- Amitriptyline ยท May increase diazepam levels
- Antacids ยท May decrease oral diazepam absorption
- Azole Antifungals (itraconazole, ketoconazole) ยท May increase diazepam levels by inhibiting metabolism
- Cimetidine ยท May decrease metabolism of benzodiazepines ยท moderate
- CNS Depressants (barbiturates, narcotics, anesthetics) ยท Additive CNS depression effects may occur
- Dexamethasone ยท May decrease diazepam levels
- Digoxin ยท Diazepam may increase digoxin levels ยท moderate
- Erythromycin ยท May decrease the metabolism of benzodiazepines
- Mineral Oil ยท May decrease oral diazepam absorption
- Omeprazole ยท May inhibit the metabolism of diazepam and increase levels ยท moderate
- Phenobarbital ยท May decrease diazepam concentrations ยท moderate
- Phenytoin ยท May decrease diazepam concentrations
- Quinidine ยท May increase diazepam levels
- Rifampin ยท May induce hepatic microsomal enzymes and decrease the pharmacologic effects of benzodiazepines
๋ชจ๋ํฐ๋ง
- Horses should be observed carefully after receiving this drug.
- Cats receiving oral diazepam must have baseline liver function tests. Repeat and discontinue drug if emesis, lethargy, inappetence, or ataxia develop.
- When used for seizure control in cats, obtain serum levels 5 days after beginning therapy (therapeutic goal: 200-700 ng/mL or 2500-700 nmol/L).
- Hepatic function (especially in cats)
- Respiratory rate and effort
- Level of CNS depression / sedation
- Seizure activity
๊ณผ์ฉ๋
When administered alone, diazepam overdoses are generally limited to significant **CNS depression** (confusion, coma, decreased reflexes, etc.). Hypotension, respiratory depression, and cardiac arrest have been reported in human patients, but are quite rare. **Treatment:** * Standard protocols for removing and/or binding the drug in the gut if taken orally (e.g., emesis, activated charcoal). * Supportive systemic measures (fluids, respiratory support if needed). * The use of analeptic agents (CNS stimulants like caffeine) is generally **not recommended**. * **Flumazenil** (a specific benzodiazepine antagonist) may be considered for adjunctive treatment of severe overdoses.
VetSheet ์ฝ๋ฌผ ๋ ํผ๋ฐ์ค๋ ๋ฉดํ ์์ ์ ๋ฌธ๊ฐ๋ฅผ ์ํ ์์ ์์ฌ๊ฒฐ์ ๋ณด์กฐ ๋๊ตฌ์ด๋ฉฐ, ์ ๋ฌธ์ ํ๋จ์ด๋ ์ ์กฐ์ฌ์ ์ต์ ๋ผ๋ฒจ์ ๋์ ํ์ง ์์ต๋๋ค.