| Fact Table | |
|---|---|
| Formula | C19H22NO4S2 |
| License | FDA and EMA approved (2004) |
| Bioavailability | ~19.5% (inhaled via dry powder) |
| Legal status | Prescription only (Rx) |
| Chemical Name | (1a,2ß,4ß,5a,7ß)-7-[(hydroxydi-2-thienylacetyl)oxy]-9,9-dimethyl-3-oxa-9-azoniatricyclo[3.3.1.0²,4]nonane bromide |
| Elimination half-life | ~25–44 hours (terminal) |
| Dosage (Strength) | 18 mcg inhalation capsule (HandiHaler); 2.5 mcg per actuation Respimat (2 inhalations once daily) |
| Pregnancy | Category C – Use only if benefit outweighs risk |
| Brands | Spiriva HandiHaler, Spiriva Respimat (Boehringer Ingelheim) |
| Protein binding | ~72% |
| PubChem CID | 5487426 |
| MedlinePlus | a604018 |
| ChEBI | 59323 |
| ATC code | R03BB04 |
| DrugBank | DB01409 |
| KEGG | D02087 |
| Routes of administration | Inhalation (dry powder inhaler or soft mist inhaler) |
Spiriva is a long-acting muscarinic antagonist used to treat chronic obstructive pulmonary disease (COPD) and asthma. Tiotropium works by blocking muscarinic receptors to relax and open the airways, which may help prevent bronchospasm. This medication is used to keep symptoms from getting worse when used daily. It is not for treating sudden breathing problems.
For COPD, the HandiHaler dosage is 18 mcg once daily as 2 inhalations using one capsule through the device. The Respimat version is taken as 2 inhalations of 2.5 mcg once daily for a total of 5 mcg per day. For asthma, the Respimat is typically taken as 2 inhalations of 1.25 mcg once daily.
Patients should take their dose at the same time each day for best results. The capsules used with the HandiHaler are for inhalation only and shouldn't be swallowed. It's important to pierce the capsule with the HandiHaler device before inhaling the powder. With the Respimat, patients need to prime the inhaler before first use and if it hasn't been used for more than 3 days.
Both devices need to be used with proper technique to ensure the medication reaches the airways effectively. Do not blow into either inhaler device, as this can affect how the medication works.
The active ingredient in this drug is tiotropium.
Avoid taking or using this medication if any of the following apply:
Common side effects of Spiriva include:
These reactions are generally mild and often improve with consistent use. Some people may also notice constipation, dizziness, or mild upper-airway symptoms like hoarseness or nasal congestion.
More serious side effects can occur, including immediate allergic reactions, paradoxical bronchospasm, or worsening of narrow-angle glaucoma or urinary retention. In rare cases, Spiriva may also cause palpitations or changes in heart rhythm. Seek medical attention if you develop sudden eye pain or vision changes, trouble urinating, severe breathing problems after inhalation, or signs of an allergic reaction such as facial swelling, hives, or trouble breathing.
What is Spiriva used for?
Spiriva (tiotropium) is a long-acting anticholinergic bronchodilator used to treat chronic obstructive pulmonary disease (COPD), including chronic bronchitis and emphysema. It is also approved for maintenance treatment of asthma in adults and children 6 years and older.
How does Spiriva work?
Spiriva works by blocking muscarinic receptors in the lungs, which helps relax and open the airways. This makes it easier to breathe and helps reduce symptoms like wheezing, shortness of breath, and coughing over time.
How is Spiriva taken?
Spiriva comes in two forms: Spiriva HandiHaler and Spiriva Respimat. HandiHaler uses capsules inhaled once daily through a dry powder inhaler, while Respimat is a soft mist inhaler also used once daily. It is important to use the device exactly as directed.
Can Spiriva be used for sudden breathing problems?
No, Spiriva is not a rescue inhaler and should not be used to treat sudden breathing problems or asthma attacks. A fast-acting bronchodilator like albuterol should be used for immediate relief of acute symptoms.
What are the common side effects of Spiriva?
The most common side effects include dry mouth, sore throat, cough, and sinus infection. Some people may also experience headache, dizziness, or constipation. These effects are usually mild but should be monitored.
Are there any serious side effects to watch for?
Serious side effects may include difficulty urinating, eye pain or blurred vision (especially if Spiriva comes into contact with the eyes), fast heart rate, or worsening breathing problems. Seek medical attention if any of these occur.
Can Spiriva be used in children?
Spiriva Respimat is approved for use in children 6 years and older for asthma management. Spiriva HandiHaler is not approved for pediatric use. A healthcare provider should guide any treatment decisions for children.
Is Spiriva safe to use with other inhalers?
Spiriva can often be used alongside other inhalers such as inhaled corticosteroids or rescue inhalers, but it should not be used with other long-acting muscarinic antagonists (LAMAs) due to risk of additive side effects. Always consult a healthcare provider before combining treatments.
What should I do if I miss a dose of Spiriva?
If you miss a dose, take it as soon as you remember, unless it's almost time for your next dose. Do not take more than one dose in a day. Consistent daily use is important for the medication to work effectively.
Who should avoid using Spiriva?
People with a history of allergy to tiotropium or atropine-like drugs should avoid Spiriva. Caution is also advised in those with glaucoma, urinary retention, or prostate problems. Always inform your doctor about your full medical history before starting Spiriva.
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A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.
The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (e.g., different shape or color), as trademark laws prevent a generic from looking exactly like the brand-name drug.
Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.