Comprehensive List of Toxicities and their Antidotes:



Antidote for Magnesium sulfate toxicity
Calcium gluconate
Antidote for Heparin toxicity
Protamine Sulfate
Antidote for Paracetamol toxicity
N-acetyl cysteine (NAC)
Antidotes for Opioids or Narcotics overdose
Naloxone (NARCAN) or Nalmefene
Antidote for Sympathomimetics toxicity
Esmolol
Antidotes for Cholinergic toxicity / Organophosphates toxicity / Nerve gas toxicity
Atropine, Pralidoxime
Antidote for Anticholinergic toxicity
Pilocarpine, Physostigmine
Antidote for Digoxin toxicity
Digoxin Immune Fab (DIGIBIND, DIGIFAB)
Antidote for Iron toxicity
Deferoxamine
Antidote for Alcohol withdrawal
Chlordiazepoxide (Librium)
Antidote for Beta-blockers toxicity
Glucagon injection 
Antidote for Calcium-channel blockers toxicity
Calcium, Glucagon, Insulin
Antidote for Methotrexate toxicity
Leucovorin
Antidote for Theophylline toxicity
Esmolol injection
Antidotes for Anticoagulants overdose
Vitamin K, Fresh Frozen Plasma (FFP)
Antidotes for Cyanide poisoning
Hydroxocobalamin
Sodium nitrite
Amyl nitrite
Sodium thiosulfate
Antidote for Hydrofluoric acid poisoning
Calcium
Antidote for Carbon monoxide poisoning
Oxygen hyperbaric chamber therapy
Antidote for Ethylene glycol poisoning
Fomepizole (1st choice)
Ethanol (2nd choice)
Antidote for Nitrites or Nitrates poisoning
Methylene blue
Antidote for Insulin shock or Insulin toxicity
Glucose (50% dextrose)
Antidotes for Lead poisoning
EDTA
Dimercaprol
Succimer (in children)
Antidote for Methanol poisoning
Fomepizole (1st choice)
Ethanol (2nd choice)
Antidote for Methemoglobinemia
Methylene blue
Antidote for Isoniazid toxicity
IV Pyridoxine
Antidote for Caffeine toxicity
Esmolol
Antidotes for Clonidine overdose
Yohimbine
Naloxone
Antidote for Tricyclic antidepressants toxicity
Sodium bicarbonate
Antidote for Heavy metals (Arsenic, Mercury, Gold) poisoning
Dimercaprol
Antidote for Gyromitra mushroom poisoning
Pyridoxine (Vitamin B6)
Antidote for Dabigatran toxicity
Idarucizumab
Antidote for Sulfonylureas (Glipizide) overdose
Glucose, Octreotide
Antidote for Methotrexate toxicity due to renal dysfunction
Glucarpidase
Antidote for SSRIs overdose
Cyproheptadine
Antidote for Neuromuscular blockers toxicity
Physostigmine
Edrophonium
Antidote for Fluorouracil toxicity
Leucovorin
Antidote for Ifosfamide toxicity
Mesna
Antidote for Cyclophosphamide toxicity
Mesna
Antidote for Thallium poisoning
Prussian blue
Antidote for Radioactive Iodine toxicity
Potassium iodide
Antidote for Antihistamines toxicity
Physostigmine
Antidote for Aspirin toxicity
IV Sodium bicarbonate
Activated Charcoal
Dialysis
Antidote for Strychnine poisoning
See full detail in the video plz.
Antidote for Copper toxicity or Wilson's disease
Penicillamine
Antidote for Phosphorous poisoning
Copper sulfate
Antidote for Coumadin (Warfarin) toxicity
Vitamin K
Antidote for Benzodiazepines toxicity
Flumazenil
Antidote for Dapsone poisoning
Methylene blue
Alternate antidotes:
Ascorbic acid
Hyperbaric oxygen
Antidote for Benzocaine overdose
IV Methylene blue
Antidote for Atropine poisoning 
Physostigmine
Antidote for acute hyperkalemia
IV Calcium gluconate
Antidote for Cheese reaction
Phentolamine