Latrodectus mactans

Common name: spider.

The præcordial region seems to be centre of the attack (Br.).

Præcordial anxiety (Acon., Cact., Lach., Naja, Spig., Verat.) (B.).

GASPS, FEARS TO LOSE BREATH AND DIE (Ars., Dig., Lach.) (B.).

Screams with pain (Br.).

ANGINA PECTORIS (Ars., Spig., Verat.) (Bl.).

PAIN IN THE REGION OF THE HEART, EXTENDING TO THE LEFT ARM (Acon., Kalm., Rhus-T.) (K.).

Constriction of chest muscles, with radiation to the the shoulders and back (Br.).

Cardiac pain: violent, sharp to shoulder or both arms, with numbness (B.).

Skin as cold as marble (Camph., Carb-V., Laur., Verat.) (Br.).

Quick, feeble, thready pulse (Acon., Camph., Phos., Verat.) (B.).

Sinking at the the epigastrium (Carb-An., Dig., Sep.) (B.).

Paræsthesia of the the lower limbs (Br.).

Weakness of the legs followed by cramps in the abdominal muscles (Br.).

AGGRAVATION: From least motion: even of hands; from exertion; and from talking.

AMELIORATION: From sitting quietly.

RELATIONSHIP: Similar to: Acon., Ars., Cact., Dig., Lach., Laur., Naja, Phos. and Verat.