Hypertension with tachycardia | Sympathomimetics | Amphetamines | Cocaine | Ephedrine | Pseudoephedrine | Theophylline | Caffeine | Methylphenidate | Cathinones | Anticholinergics | Antihistamines | TCAs (early) | Phenothiazines (some) | Antiparkinson agents | Muscle relaxants | Clozapine | Central hallucinogens | Designer amphetamines | Lysergic acid diethylamide (LSD) | Phencyclidine (PCP) | Synthetic cannabinoids | Envenomations | Black widow spider bite | Scorpion stings | Drug withdrawal states | MAOIs (foods with tyramine) | Nicotine | Cholinergic agents (sometimes) | Organophosphates | Carbamates | Thyroid hormone | | Hypertension with bradycardia | Alpha-adrenergic agonists | Phenylpropanolamine | Phenylephrine | Phentermine | Ergot alkaloids | Sumatriptan | Clonidine (early) | Guanfacine | Imidazolines | Tetrahydrozoline | Oxymetazoline | Cholinergic agents | Organophosphates | Carbamates | Steroid hormones | Glucocorticoids | Mineralocorticoids | Estrogen | Progesterone | Androgens | Yohimbine | Heavy metals | Lead | Disulfiram reaction (early) | | Hypotension with tachycardia | Beta-adrenergic agonists | Theophylline | Albuterol | Isoproterenol | Terbutaline | Caffeine | Disulfiram reaction (late) | Toxic alcohols | Isopropyl alcohol | Carbon monoxide | Alpha-adrenergic antagonists | Phenothiazines | TCAs | Hydralazine | Heavy metals (acute) | Iron | Arsenic | Colchicine | Nitrates | Sodium nitroprusside | | Hypotension with bradycardia | Beta-blockers | Calcium-channel blockers | Cardiac glycosides | Digoxin | Digitalis purpurea | Oleander | Red squill | Bufotenin | Clonidine | Alpha-methyldopa | Cyanide | Carbon monoxide (late) | Opioids | Sedative-hypnotics | Barbiturates | Benzodiazepines | Cholinergics | Organophosphates | Carbamates | Antiarrhythmics | |