In addition to Natrum Sulph, Gelsemium, Silicea and Apis, the following should also be studied:
Aconitum - Belladonna - Bryonia - Calcarea Carb - Cicuta Virosa - Crotalus Horridus - Cuprum Metallicum - Glonoine - Helleborus - Hyoscyamus - Mercurius - Nux Vomica - Opium - Zincum
by Mirza Tahir Ahmad