Supportive care should include:
IV fluids
Potassium repletion
Benzodiazepine administration for agitation
Evaluation for Rhabdomyolysis 
In an isolated severe overdose without associated cocaine igestions, β-blockade can be given via IV metoprolol, labetolol or esmolol
Beta blockade may reverse the associated hypotension from the excessive Beta agonism of the<unk> 
Do not administer β-blocker if there is a chance of associated cocaine use. Diltiazem is an alternative for these situations
Do not administer β-blocker if there is a chance of associated cocaine use. Diltiazem is an alternative for these situations
Clenbuterol toxicity
Infectious
Theophylline toxicity
Sepsis
Nicotine toxicity
Meningitis
Caffeine toxicity
Encephalitis