Antivenom
European viper snake venom antiserum
Brand names: ViperaTAb, Viperfav
Adult dose
Dose: Initial 4mL (200 mg) IV slow infusion over 30 min; repeat after 1–2h if no clinical improvement
Route: IV
Frequency: per response
Clinical pearls
- Adder (Vipera berus) bite with systemic signs (hypotension, prolonged limb swelling, bleeding, GI symptoms)
- Discuss with NPIS or TOXBASE
- Have adrenaline + steroid + antihistamine ready
Contraindications
- No absolute contraindications in life-threatening envenoming
Side effects
- Anaphylaxis
- Serum sickness
- Pyrexia
Monitoring
- BP
- HR
- FBC
- Coag
- U&E
- Limb circumference
Reference: BNF; TOXBASE; NPIS; https://bnf.nice.org.uk/drugs/european-viper-snake-venom-antiserum/. Verify against your local formulary and the latest BNF before prescribing.
Related
Curated clinical cross-links plus same-class fallbacks.
Pathways
- New-Onset Atrial Fibrillation · ESC 2020 AF Guidelines; NICE NG196
- Hypertensive Emergency · ESC/ESH 2018 Hypertension Guidelines; NICE NG136
- Bradycardia Management · Resuscitation Council UK ABCDE; ESC 2021 Pacing Guidelines
- Ventricular Tachycardia / Fibrillation · Resuscitation Council UK ACLS; ESC 2022 Ventricular Arrhythmia Guidelines
- Syncope Assessment · ESC 2018 Syncope Guidelines; NICE NG109
- Acute Chest Pain · NICE CG95; ESC 2023 ACS Guidelines