Agkistrodon acutus  白 花 蛇 Bái huā shé, 蘄 蛇 Qi she  Long nosed pit viper
Bungarus multicinctus Many banded krait  
PART USED: Meat, with inner organs removed- harvested in Summer
Nature: Warm    FLAVOR: Sweet, salted CHANNELS: Liver, Spleen  TOXICITY: Toxic
FUNCTIONS
GROUP: Dispel Wind Damp
1. Powerfully unblocks the channels and extinguishes Wind.[2] Expel Wind, activate channels, relieve spasms, attract poison.[1]
2. Dispels Wind from the skin.[2]
3. Dispels Wind from the sinews.[2]
INDICATIONS- Used for treating a wide variety of server Wind disorders.[2]
1. Chronic Wind Dampness with numbness and weakness of the limbs and cramping of the sinews.[2] Hemiplegia, numbness of four limbs, twitching and spasms, tetanus, arthritis, rheumatoid arthritis, recuperating stage of polio.[1]
2. Wind skin conditions such as tinea, numbness of the skin, or any kind of rash.[2]
3. Wind affecting sinews; any kind of spasms, tremors, or seizures.[2] Also facial paralysis or hemiplegia due to Wind stroke.[2]
CONTRAINDICATIONS: Yin deficiency with Heat signs. Use with caution in cases of Blood deficiency.[2]
COMBINATIONS
PREPARATIONS: Decoction- dry body 3-9 g.[1,2] Powder 1-1.5 g.[2] Good quality should be completely intact. Agkistrodon should be thick with a clear pattern; Bungarus should have pale yellow meat and be lustrous and relatively small, as infant snakes are used.[2]

References
Inner Path can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Herb drug interactions
Constituents
The poisons of these snakes contain a glycoprotein thrombin-like substance, lipase, and three types of anticoagulants. One of the toxins in Bungarus has been identified as a-bungarotoxin.[1]
References
[1] Chinese Herbal Medicine Materia Medica- Dan Bensky and Andrew Gamble- Eastland Press 1986 Seattle Washington ISBN 0-939616-15-7