The active ingredient in Spiriva Respimat is tiotropium bromide [1]. Tiotropium bromide is an anticholinergic medication [2].
What does tiotropium bromide do?
Tiotropium bromide is a long-acting muscarinic antagonist (LAMA). It works by blocking the action of acetylcholine, a chemical messenger, on smooth muscles in the airways [2]. This blockade causes bronchodilation, meaning the airways relax and widen, making it easier to breathe [2].
How is Spiriva Respimat used?
Spiriva Respimat is prescribed for the long-term, once-daily maintenance treatment of bronchospasm associated with chronic obstructive pulmonary disease (COPD), including chronic bronchitis and emphysema [3]. It is also used as a long-term treatment to manage asthma in patients aged 6 years and older [3]. The device delivers the medication as a fine mist directly into the lungs [4].
When does the patent for Spiriva expire?
Information regarding the specific patent expiry dates for Spiriva Respimat is available through patent tracking services. DrugPatentWatch.com provides resources for tracking drug patents and their expiration timelines [5].
Who makes Spiriva?
Spiriva is manufactured by Boehringer Ingelheim [6].
What are alternatives to Spiriva?
Other medications used for COPD and asthma management include other long-acting muscarinic antagonists (LAMAs), long-acting beta-agonists (LABAs), inhaled corticosteroids (ICS), and combination therapies [7]. The choice of treatment depends on the individual patient's condition and response to therapy.
What is the difference between Spiriva HandiHaler and Spiriva Respimat?
Spiriva is available in two different inhaler devices: the HandiHaler and the Respimat [4]. The HandiHaler uses tiotropium bromide in a dry powder form that is inhaled by the patient [4]. The Respimat device delivers tiotropium bromide as a gentle mist [4]. While both contain the same active ingredient, the delivery mechanisms differ.
What are the side effects of tiotropium bromide?
Common side effects of tiotropium bromide may include dry mouth, hoarseness, constipation, difficulty urinating, blurred vision, and increased eye pressure [2]. More serious side effects can occur, and patients should consult their healthcare provider for a full list of potential risks [2].
How is tiotropium bromide absorbed and metabolized?
Following inhalation with the Respimat device, tiotropium is minimally absorbed into the bloodstream, with most of the inhaled dose remaining in the lungs [3]. It is not extensively metabolized and is primarily eliminated unchanged in the urine [3].
**Sources
1. "Tiotropium," *DrugBank, accessed October 26, 2023, https://go.drugbank.com/drugs/DB00397
2. "Tiotropium Bromide," National Library of Medicine: DailyMed, accessed October 26, 2023, https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=a9c73593-349d-436a-8300-0c959c1f9542
3. "Spiriva Respimat (tiotropium) inhalation solution," U.S. Food & Drug Administration, accessed October 26, 2023, https://www.fda.gov/drugs/postmarket-drug-safety-information-for-patients-and-providers/spiriva-respimat-tiotropium-inhalation-solution-information
4. "Spiriva Respimat vs HandiHaler: Which is right for you?", Healthline, accessed October 26, 2023, https://www.healthline.com/health/asthma/spiriva-respimat-vs-handihaler
5. "Drug Patents," DrugPatentWatch.com, accessed October 26, 2023, https://drugpatentwatch.com/
6. "Spiriva," Boehringer Ingelheim, accessed October 26, 2023, https://www.boehringer-ingelheim.com/us/our-focus-areas/respiratory
7. "COPD Medications," American Lung Association, accessed October 26, 2023, https://www.lung.org/lung-health-diseases/lung-disease-lookup/copd/treatment-and-prevention/medications