What is Spiropent?
SPIROPENT tablets contain the active ingredient clenbuterol hydrochloride (0.02 mg per tablet), a beta-2 sympathomimetic. In bronchial asthma and bronchitis, it widens the airways narrowed by spasm and thus makes breathing easier.
The tablets are used to treat chronic obstructive airway diseases with reversible narrowing, such as bronchial asthma or chronic obstructive bronchitis with or without emphysema.
SPIROPENT is not suitable for treating an acute asthma attack and is used in addition to long-term anti-inflammatory therapy.
Active Ingredients & Mechanism of Action
Active ingredient: Clenbuterolhydrochlorid
Clenbuterol acts as a selective beta-2 agonist:
Mechanism of action:
- Activates beta-2 adrenoceptors
- Relaxes the bronchial muscles
- Widens the airways
- Promotes mucociliary clearance
Special features:
- Oral bioavailability: approx. 90%
- Duration of action: up to 14 hours
- More selective for beta-2 receptors than older substances
- Also acts systemically (tablet)
Time course:
- Onset of action: 15-30 minutes
- Maximum effect: 2-3 hours
- Duration of action: up to 14 hours
Who is it suitable for?
SPIROPENT tablets are suitable for:
- Adults and children aged 12 years and older with chronic obstructive airway diseases with reversible narrowing (e.g., bronchial asthma, chronic obstructive bronchitis)
Not suitable:
- for treating an acute asthma attack
- as a replacement for long-term anti-inflammatory therapy
Available Dosages
Usual dose (adults and children aged 12 years and older):
- 1 tablet each morning and evening (0.02 mg clenbuterol hydrochloride)
Adjustments as directed by a doctor:
- with longer treatment, 2 × ½ tablet daily is often sufficient
- with more severe breathing difficulties, up to 2 × 2 tablets daily on the first 2–3 days, then a lower dose
Maximum dose:
- in adults, no more than 5 tablets per day
Dosage form and pack sizes
The medicines catalogue lists one pack variant: one strength in one pack size.
- Dosage form
- Tablette
- Strengths
- 0,02 mg
- Pack sizes
- 100 units
| Strength | Pack | PZN |
|---|---|---|
| 0,02 mg | 100 units | 01980325 |
Packs listed in the German medicines catalogue. Which of them are currently available and what they cost is shown in the price overview.
The Pharmazentralnummer (PZN) is the nationwide unique identifier of a pack in Germany.
How to Take
How to take:
- Take without chewing, with meals and with sufficient liquid, preferably with a glass of drinking water.
- Do not take while lying down.
Important notes:
- Do not increase the dose without medical instruction — an increasing need is a sign that the condition is worsening.
- Continue long-term anti-inflammatory therapy alongside.
- If your breathing difficulties suddenly worsen, seek medical help immediately.
Contraindications
Do not use in case of:
- Hypersensitivity to clenbuterol
- Hypertrophic obstructive cardiomyopathy
- Tachyarrhythmias
- Severe thyrotoxicosis
Use with caution in:
- Cardiovascular diseases
- Hyperthyroidism
- Diabetes mellitus
- Pheochromocytoma
Pregnancy: Only if strictly indicated. Clenbuterol inhibits labor contractions.
Breastfeeding: Passes into breast milk. Not recommended.
Possible Side Effects
Common:
- Tremor (shaking)
- Palpitations
- Restlessness, nervousness
- Headache
Uncommon:
- Sleep disturbances
- Muscle cramps
- Nausea
- Sweating
Rare:
- Cardiac arrhythmias
- Hypokalemia
- Changes in blood pressure
Note: Systemic side effects are more common with oral intake than with inhalation.
Interactions
Interactions:
- Beta blockers – cancel out the effect of clenbuterol
- MAO inhibitors – increased cardiac effect
- Tricyclic antidepressants – increased cardiac effects
- Diuretics – risk of hypokalemia
- Other sympathomimetics – additive effects
Frequently Asked Questions
Spiropent is an alternative for adults and children aged 12 years and older in whom treatment with a comparable inhaled medicine is not possible or not sufficiently effective. In general, however, inhalers are preferable because they cause fewer systemic side effects.
Clenbuterol is misused in the fitness scene, but it is a prescription-only medicine for the treatment of respiratory diseases. The medical dosage is considerably lower than in cases of misuse.
Similar Medications
Is Spiropent right for you?
A licensed doctor will review your information and issue a prescription if suitable. Discreet and secure.
Important Notice
This information does not replace medical advice. If you have questions about your health or the suitability of this medication, please consult a doctor or pharmacist.
Important Safety Information
This service operates under German pharmaceutical law (HWG). For risks and side effects, read the package leaflet and consult your doctor or pharmacist. All medications are dispensed from a licensed pharmacy in Germany.





