| ipratropium | <chemical> A muscarinic antagonist structurally related to atropine but often considered safer and more effective for inhalation use. It is used for various bronchial disorders, in rhinitis, and as an antiarrhythmic. Pharmacological action: anti-arrhythmia agents, bronchodilator agents, muscarinic antagonists, parasympatholytics. Chemical name: 8-Azoniabicyclo(3.2.1)octane, 3-(3-hydroxy-1-oxo-2-phenylpropoxy)-8-methyl-8-(1-methylethyl)-, (endo,syn)-(+-)- (12 Dec 1998) |
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| iprindole | <chemical> A tricyclic antidepressant that has actions and uses similar to those of amitriptyline, but has only weak antimuscarinic and sedative effects. Pharmacological action: antidepressive agents, tricyclic, adrenergic uptake inhibitors. Chemical name: 5H-Cyclooct(b)indole-5-propanamine, 6,7,8,9,10,11-hexahydro-N,N-dimethyl- (12 Dec 1998) |
| iproniazid | <chemical> An irreversible inhibitor of monoamine oxidase types a and b that is used as an antidepressive agent. It has also been used as an antitubercular agent, but its use is limited by its toxicity. Pharmacological action: antidepressive agents, monoamine oxidase inhibitors, antitubercular agents. Chemical name: 4-Pyridinecarboxylic acid, 2-(1-methylethyl)hydrazide (12 Dec 1998) |
| ipronidazole | <chemical> 2-isopropyl-1-methyl-5-nitroimidazole. An antihistomonal agent with low toxicity. It also promotes growth and feed utilization in poultry. Pharmacological action: antiprotozoal agents. Chemical name: 1H-Imidazole, 1-methyl-2-(1-methylethyl)-5-nitro- (12 Dec 1998) |
| iproveratril | <drug> A calcium channel blocking drug, used as a coronary vasodilator and antiarrhythmic. Pharmacologic action: Calcium channel blockade, direct, potent negative chronotrope and inotrope, slows conduction in AV node, systemic and coronary vasodilation. Uses: Supraventricular tachycardias. Dose: 2.5 - 5.0 mg IV over 1-2 minutes May repeat at 5.0 - 10 mg every 15-30 minutes until 30 mg total dose. Onset: 3 - 5 min. Potential complications: Hypotension due to vasodilation and depressed contractility. Treat with calcium; bradycardia, AV block can be exacerbated, contraindicated with congestive heart failure, synergistic interaction with beta blockers. Note: Administration of verapamil to a patient with ventricular tachycardia can be lethal. Verapamil can accelerate heart rate and decrease blood pressure, especially in patients with Wolff-Parkinson-White and wide-complex tachycardia. (12 Mar 2000) |
| iPrSGal | <abbreviation> Isopropylthiogalactoside. (05 Mar 2000) |