Drug Index

Tiotropium Bromide

 
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Mechanism :

Tiotropium is a muscarinic receptor antagonist, often referred to as an antimuscarinic or anticholinergic agent. Although it does not display selectivity for specific muscarinic receptors, on topical application it acts mainly on M3 muscarinic receptors located in the airways to produce smooth muscle relaxation, thus producing a bronchodilatory effect.


Indication :

• Chronic obstructive pulmonary disease (COPD)

• Asthma.


Contraindications :

Hypersensitivity to any component.

Taking another anticholinergic.


Dosing :

2.5 mcg (2 actuations; 1.25 mcg/actuation) inhaled PO once a day.


Adverse Effect :

Upper respiratory tract infection, dry mouth, sinusitis, allergic reaction, constipation, depression, dysphonia.


Interaction :

Potassium Chloride: The ulcerative effects of solid oral dosage forms of KCl may be enhanced by Tiotropium, an anticholinergic. Anticholinergics slow gastric emptying, increasing the contact time between the gastrointestinal mucosa and KCl. Prolonged exposure to KCl increases the risk of gastric and intestinal irritation and ulceration. Solid oral dosage forms of KCl should be avoided; alternatives include liquid or effervescent potassium preparations.
Pramlintide: The anticholinergic effects of Tiotropium may be enhanced by Pramlintide. Additive effects of reduced GI motility may occur. Pramlintide slows gastric emptying and should not be used with drugs that alter GI motility (e.g. anticholinergics). Consider alternative treatments or use caution during concomitant therapy.
Secretin: The stimulatory effect of Secretin may be reduced by anticholinergics such as Tiotropium. Concomitant use of Secretin and drugs with substantial anticholinergic effects should be avoided. If combination therapy must be used, Secretin efficacy should be closely monitored.
Tacrine: The therapeutic effects of the central acetylcholinesterase inhibitor, Tacrine, and/or the anticholinergic, Tiotropium, may be reduced due to antagonism. The interaction may be beneficial when the anticholinergic action is a side effect. Monitor for decreased efficacy of both agents.
Trimethobenzamide: Trimethobenzamide and Tiotropium, two anticholinergics, may cause additive anticholinergic effects and enhance their adverse/toxic effects. Monitor for enhanced anticholinergic effects.
Triprolidine: Triprolidine and Tiotropium, two anticholinergics, may cause additive anticholinergic effects and enhance their adverse/toxic effects. Monitor for enhanced anticholinergic effects.
Trospium: Trospium and Tiotropium, two anticholinergics, may cause additive anticholinergic effects and enhanced adverse/toxic effects. Monitor for enhanced anticholinergic effects.


08/11/2019 20:51:13 Tiotropium Bromide
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