Short-acting ester local anaesthetic
Chloroprocaine hydrochloride
Brand names: Ampres, Clorotekal
Adult dose
Dose: Spinal: 30–50mg (1% solution) for surgery up to 40 min. Refer to product
Route: Intrathecal/Epidural/Infiltration
Frequency: per procedure
Clinical pearls
- Very short duration ideal for short ambulatory surgery (30–40 min)
- Ester LA — metabolised by plasma cholinesterase
Contraindications
- Hypersensitivity to ester local anaesthetics
- Severe cardiac conduction abnormalities
- Septicaemia
Side effects
- Hypotension
- Bradycardia
- TNS (rare)
Interactions
- Sulfonamides (PABA metabolite reduces sulfa efficacy)
- Other LAs (cumulative toxicity)
Reference: BNF; https://bnf.nice.org.uk/drugs/chloroprocaine-hydrochloride/. Verify against your local formulary and the latest BNF before prescribing.
Related
Curated clinical cross-links plus same-class fallbacks.
Calculators
- ASA Physical Status Classification · Pre-operative Risk
- Local Anaesthetic Maximum Dose Calculator · Drug Dosing
- Cervical Cerclage Criteria (Short Cervix / Preterm Risk) · Preterm Labour
- Brief Pain Inventory — Short Form (BPI-SF) · Pain
- Montreal Cognitive — Short Screening for Substance Misuse · Substance Misuse Screening
- Short Michigan Alcoholism Screening Test (SMAST) · Alcohol Use