20 mg Tablet Strength
Each tablet is labeled at 20 mg of tadalafil citrate.
Dragon Pharma
Cialis 20 mg
Phosphodiesterase-5 (PDE5) Inhibitor
- Product: Cialis 20 mg
- Active Substance: Tadalafil Citrate
- Strength: 20 mg/tablet
- Container: 100 tablets in sachet
- Manufacturer: Dragon Pharma
$61.00
Warehouse :
International
U.S. Domestic
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Dragon Pharma Oral Product
Dragon Pharma Cialis 20 mg Overview
Dragon Pharma Cialis 20 mg is supplied in a sachet containing 100 oral tablets, with each tablet containing tadalafil citrate at a labeled strength of 20 mg. Product specifications, batch-specific lab reports, storage information, and available payment options are provided below.
100-Tablet Sachet
Supplied in a sealed, multi-tablet sachet containing 100 individual tablets.
Published Lab Reports
Multiple published lab reports provide measured results across different test dates for the same batch.
Long-Acting Formulation
Tadalafil is known for its extended duration of action compared to other PDE5 inhibitors.
Product Specifications
| Product name | Cialis 20 mg |
|---|---|
| Active substance | Tadalafil Citrate |
| Labeled strength | 20 mg/tablet |
| Container | 100 tablets in sachet |
| Total labeled content | 2,000 mg per sachet |
| Product form | Oral tablets |
| Manufacturer | Dragon Pharma |
Published Test Result
The latest published report for batch #HTDFD, dated January 13, 2026, measured 20.26 mg per tablet against the stated 20 mg concentration.
Open the Lab Reports tab to view the full report and available testing history.
Related Products
Dragon Pharma also offers Viagra 50 mg, which contains sildenafil citrate as the active substance, and Levitra 20 mg, containing vardenafil. These products belong to the same class of compounds but have different active ingredients, each with distinct characteristics regarding onset and duration.
Published Testing History
Dragon Pharma Cialis 20 mg Lab Reports
Published lab reports for Dragon Pharma Cialis 20 mg are provided below with the test date, measured result and reported batch number. Each result can be compared directly with the product's labeled strength of 20 mg/tablet.
Latest Published Report
January 13, 2026 Laboratory Test
- Label claim
- 20 mg
- Measured result
- 20.26 mg
- Measured vs. label
- 101.30%
- Batch
- #HTDFD
- Test date
Testing History at a Glance
- Reports published 4 reports
- Date range June 17, 2024–January 13, 2026
- Lowest result 19.84 mg
- Highest result 22.59 mg
- Measured vs. label 99.20%–112.95%
Science & Research
Understanding Tadalafil
Cialis 20 mg contains tadalafil, a compound that belongs to the class of phosphodiesterase type 5 (PDE5) inhibitors. Tadalafil is distinguished by its longer duration of action compared to other PDE5 inhibitors.
PDE5 Inhibition
Tadalafil works by inhibiting the PDE5 enzyme, which plays a role in the breakdown of cyclic GMP, a molecule involved in smooth muscle relaxation.
Smooth Muscle Relaxation
By increasing cyclic GMP levels, tadalafil promotes relaxation of smooth muscle tissues, which contributes to its effects.
Extended Duration
Tadalafil has a longer half-life than other PDE5 inhibitors, which contributes to its extended duration of action.
How Tadalafil Works
Tadalafil selectively inhibits the PDE5 enzyme. This enzyme is responsible for breaking down cyclic GMP, a signaling molecule. When PDE5 is inhibited, cyclic GMP levels increase, which promotes smooth muscle relaxation in certain tissues.
The duration of action is longer compared to other PDE5 inhibitors, which is attributed to its longer half-life.
PDE5 Inhibitor Class
Other PDE5 inhibitors include sildenafil, vardenafil, and avanafil. While they share a similar mechanism of action, they differ in their onset of action, duration, and selectivity for the PDE5 enzyme.
Dragon Pharma Cialis 20 mg is supplied in oral tablet form at a labeled strength of 20 mg per tablet.
Medical and Research References
Tadalafil is also used in approved prescription medicines. Official prescribing and safety information provides useful background on the compound, including its pharmacology, approved medical uses, warnings and monitoring considerations.
Important Health Information
Cialis 20 mg Safety Information
Tadalafil can cause significant side effects and requires appropriate medical assessment when used as a prescription treatment. A laboratory report confirms information about the tested sample, but it does not determine whether tadalafil use is safe or appropriate for an individual.
Cardiovascular Considerations
Tadalafil can lower blood pressure and may cause mild, transient hypotension. People with cardiovascular disease or risk factors should undergo medical evaluation before use.
Vision and Hearing
Sudden vision loss or hearing loss have been reported rarely with PDE5 inhibitors. Any sudden changes in vision or hearing require prompt medical attention.
Duration of Action
Tadalafil has a long half-life. Its effects can last for an extended period, which is relevant when considering dosing intervals and potential interactions.
Drug Interactions
Tadalafil can interact with medications such as nitrates and alpha-blockers, potentially causing serious blood pressure changes. A thorough medication review with a healthcare professional is essential.
Pregnancy and Breastfeeding
Tadalafil is not indicated for use in women. It should not be used during pregnancy or breastfeeding unless specifically prescribed by a qualified healthcare professional.
Known Contraindications
Contraindications include the use of any form of organic nitrate and certain conditions such as severe cardiovascular disease. A complete medical history should be reviewed before use.
Conditions That Require Medical Review
Medical advice is particularly important when there is a history of cardiovascular disease, low or high blood pressure, stroke, heart attack, arrhythmias, liver or kidney disease, bleeding disorders, stomach ulcers, retinitis pigmentosa, or any conditions affecting the penis.
The product should also be stored securely to prevent accidental access or use by children or other household members.
When to Seek Urgent Medical Help
Seek urgent medical attention for symptoms such as chest pain, sudden shortness of breath, fainting, severe dizziness, sudden vision loss, hearing loss, ringing in the ears, a painful or prolonged erection, or signs of a serious allergic reaction.
Tested Sport
Tadalafil is not currently prohibited in sport, but the use of PDE5 inhibitors may be subject to specific anti-doping rules depending on the sport and governing body. Current requirements should be checked against the relevant anti-doping rules before competition.
The current status and applicable rules can be checked through the World Anti-Doping Agency Prohibited List.
Common Product Questions
Dragon Pharma Cialis 20 mg FAQ
Quick answers about Cialis 20 mg specifications, published lab reports, storage, shipping, Bitcoin payment and general product information.
What is Dragon Pharma Cialis 20 mg?
Dragon Pharma Cialis 20 mg is an oral tablet product containing tadalafil citrate at a labeled strength of 20 mg per tablet. It is supplied in a sachet containing 100 tablets.
How much tadalafil is in the entire sachet?
A sachet containing 100 tablets each labeled at 20 mg provides a total labeled content of 2,000 mg of tadalafil citrate.
What is the difference between Cialis and Viagra?
Both are PDE5 inhibitors, but they contain different active substances. Cialis contains tadalafil, while Viagra contains sildenafil. Tadalafil generally has a longer duration of action compared to sildenafil.
What did the latest Cialis 20 mg lab report show?
The latest published report, dated January 13, 2026, measured 20.26 mg per tablet for batch #HTDFD. This corresponds to approximately 101.30% of the stated 20 mg concentration.
Why are multiple lab reports available for the same batch?
Multiple reports provide a testing history across different dates for the same batch. The batch number printed on the product can be compared with the batch numbers listed in the Lab Reports tab to find corresponding published tests.
Does a lab report verify every tablet in the sachet?
No. Each report applies to the sample submitted for that specific test and the batch identified in the report. It does not independently verify the content or condition of every individual tablet.
How should Cialis 20 mg be stored?
Follow the storage directions printed on the product label. Keep the sachet sealed until the tablets are needed, protect the product from excessive heat, moisture and direct light, and keep it securely out of reach of children and pets.
Does Cialis 20 mg require refrigeration?
Follow the storage instructions printed on the supplied product. Do not refrigerate or freeze the tablets unless the manufacturer specifically instructs otherwise.
How long does Cialis 20 mg delivery take?
Delivery depends on the warehouse selected for the order. Shipments from the USA Warehouse typically take 4–5 business days after dispatch, while shipments from the International Warehouse typically take 15–20 business days after dispatch. Full delivery and reship information is available on the Shipping Information page.
Can I buy Cialis 20 mg with Bitcoin?
Yes. Bitcoin and other supported cryptocurrencies are available at checkout for all orders. To buy Cialis 20 mg with Bitcoin, select Bitcoin as the payment method during checkout and follow the payment instructions provided with the order.
Is Bitcoin payment anonymous?
Bitcoin transactions are recorded on a public blockchain and should not be considered automatically anonymous. Accurate order and delivery information is still required for order processing and shipping.
Is tadalafil permitted in tested sport?
Tadalafil is not currently prohibited in sport, but the use of PDE5 inhibitors may be subject to specific anti-doping rules depending on the sport and governing body. Current requirements should be checked against the relevant anti-doping rules before competition.
Where can I find official tadalafil safety information?
Official prescribing and safety information is available from FDA, DailyMed and MedlinePlus. Direct links to these resources are provided in the Science & Research and Safety sections above.
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