View Report
June 7, 2024
Measured Result 48.96 mg 97.92% of label claim
Stealth Labs
Stealth Labs
Latest Laboratory Result 48.96 mg June 7, 2024 · 97.92% of label claim View
Cialis 50 mg
Product Information Compound Details
Active Substance Tadalafil Citrate Phosphodiesterase Type 5 (PDE5) Inhibitor
50 mg/tabletStrength 50 mg/tablet
Package 100 Tablets 5,000 mg total labeled content
Form Oral Tablets
Drug Class PDE5 Inhibitor
Manufacturer Stealth Labs
Packaging Notice Shipped Without Product Label This Stealth Labs product is supplied in an unlabeled vial.
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Product Overview
Cialis 50 mg by Stealth Labs
Cialis 50 mg is an oral tadalafil citrate tablet manufactured by Stealth Labs and dosed at 50 mg per tablet in a 100-tablet pack.
Tadalafil Citrate Oral
Cialis 50 mg contains tadalafil citrate, a phosphodiesterase type 5 (PDE5) inhibitor. In medical practice, tadalafil is FDA-approved for the treatment of erectile dysfunction, the signs and symptoms of benign prostatic hyperplasia, and pulmonary arterial hypertension. In non-medical bodybuilding settings, tadalafil is commonly referenced for its vasodilatory and blood-flow-enhancing properties, as well as for its potential to support recovery and pump during training.
Tadalafil works by inhibiting the PDE5 enzyme, which is responsible for breaking down cyclic guanosine monophosphate (cGMP). By preventing cGMP breakdown, tadalafil allows smooth muscle relaxation and increased blood flow to targeted tissues when nitric oxide is released in response to sexual stimulation or other triggers. This mechanism underlies both its approved medical applications and its off-label use in bodybuilding contexts.
While tadalafil's medical applications are well established and FDA-approved, its use for physique or performance enhancement falls outside approved medical indications. Non-medical use should be considered in the context of potential adverse effects, including hypotension when combined with nitrates or alpha-blockers, and the risk of priapism.
Key Benefits of Cialis 50 mg
- PDE5 inhibitor with FDA-approved medical applications
- Long duration of action, reported up to 36 hours
- Supports improved blood flow and vascularity
- Oral tablet form allows convenient administration
- Published laboratory testing with 97.92% of label claim
Product Profile
Tadalafil Citrate Profile
Tadalafil citrate is a selective phosphodiesterase type 5 (PDE5) inhibitor with a well-characterized pharmacological profile. Its prolonged duration of action distinguishes it from other PDE5 inhibitors and contributes to its unique position among treatments for erectile dysfunction.
Phosphodiesterase Type 5 (PDE5) Inhibitor
Tadalafil belongs to the PDE5 inhibitor class of compounds, which also includes sildenafil and vardenafil. These agents work by blocking the PDE5 enzyme, which normally degrades cGMP. When cGMP levels are preserved, smooth muscle cells in the corpus cavernosum and pulmonary vasculature are able to relax, leading to increased blood flow.
Following oral administration, tadalafil is rapidly absorbed, with peak plasma concentrations occurring approximately 2 hours after dosing. The absolute bioavailability is approximately 36%, and the drug is highly protein-bound (94%). Tadalafil is metabolized primarily by CYP3A4, with the major metabolite being methylcatechol glucuronide, which is pharmacologically inactive.
Tadalafil's terminal half-life is approximately 17.5 hours in healthy subjects, which is significantly longer than sildenafil's approximately 4-hour half-life. This extended half-life accounts for tadalafil's reported duration of action of up to 36 hours, making it the longest-acting PDE5 inhibitor available.
Duration of Action
Extended Efficacy Window
Tadalafil's extended half-life and prolonged duration of action distinguish it from other PDE5 inhibitors. The reported efficacy window of up to 36 hours allows for greater spontaneity compared to shorter-acting alternatives, though this extended duration also means that any adverse effects may persist longer.
Cialis 50 mg vs Other Stealth Labs Preparations
Stealth Labs offers several products that may be referenced alongside tadalafil in performance-related contexts. While tadalafil is a PDE5 inhibitor, other products serve entirely different physiological roles.
For those seeking a more established medical alternative, Cialis by Stealth Labs is the standard-strength tadalafil product. In the context of hormone-related products, Tamoxifen is a selective estrogen receptor modulator (SERM) commonly referenced in post-cycle therapy, while Clomid is another SERM used in similar contexts. These products operate through distinct mechanisms and are not substitutes for one another.
Laboratory Testing
Cialis 50 mg Lab Reports
Published laboratory reports for Cialis 50 mg are shown below with the test date, measured content and percentage of the product's 50 mg label claim.
View Report
Laboratory results apply to the specific tested sample represented in each published report and should not be interpreted as a measurement of every tablet or production batch.
Dosage & Usage
Cialis 50 mg Dosage & Usage
The information below is provided for educational reference only. Tadalafil is a prescription medication; medical use requires appropriate diagnosis, clinical supervision and ongoing monitoring. Non-medical use falls outside approved indications.
Typical Dosage Ranges
In medically supervised settings, tadalafil dosing varies by indication. For erectile dysfunction, the FDA-approved on-demand dose is 10 mg taken prior to anticipated sexual activity, with a maximum recommended dose of 20 mg and a maximum dosing frequency of once daily. A once-daily 5 mg dose is approved for patients who anticipate frequent sexual activity. For benign prostatic hyperplasia, the approved dose is 5 mg once daily. The 50 mg strength is not an FDA-approved dose for any indication; in non-medical bodybuilding contexts, tadalafil is commonly referenced at dosages of 10–20 mg per day, with the 50 mg strength representing a significantly higher exposure than standard medical use.
| Use Case | Common Reference Range | Frequency |
|---|---|---|
| Medical (ED, on-demand) | 10–20 mg | Once daily, as needed |
| Medical (ED, daily) | 5 mg | Once daily |
| Medical (BPH) | 5 mg | Once daily |
| Non-medical (bodybuilding) | 10–20 mg | Once daily or as needed |
Stacking & Cycle Considerations
In non-medical bodybuilding contexts, tadalafil is sometimes referenced for its vasodilatory effects, which may support training pumps and blood flow. Unlike anabolic compounds, tadalafil does not suppress endogenous hormone production and is not typically incorporated into post-cycle therapy protocols.
For products more commonly referenced in PCT and hormonal recovery contexts, Tamoxifen and Clomid are SERMs that operate through entirely different mechanisms. Cycle structure and support protocols should be considered in the context of individual experience, health status and bloodwork where possible.
Managing Side Effects
Tadalafil is associated with several potential side effects that should be considered. The most commonly reported adverse effects in clinical trials include headache, dyspepsia, back pain, myalgia, nasal congestion, and flushing. These effects are generally mild to moderate and transient.
More serious but rare adverse effects include priapism (prolonged erection lasting more than 4 hours), sudden vision loss due to non-arteritic anterior ischemic optic neuropathy (NAION), and sudden hearing decrease. Tadalafil is contraindicated with nitrates and guanylate cyclase stimulators due to the risk of severe hypotension.
Post-Cycle Therapy (PCT)
Tadalafil is not a compound that requires post-cycle therapy, as it does not suppress the hypothalamic-pituitary-gonadal axis. Tadalafil's mechanism of action is limited to PDE5 inhibition and does not involve hormonal pathways related to testosterone production.
Important
Individual Response Varies
Dosing strategies and support protocols should be adjusted based on experience level and bloodwork where possible. The information above is for educational reference and does not constitute medical advice.
Safety & Information
Tadalafil Citrate Safety Information
Tadalafil is a prescription medication with a well-documented safety profile established through extensive clinical use. Medical tadalafil therapy requires appropriate diagnosis, clinical supervision and ongoing monitoring.
Important Safety Information
Tadalafil is contraindicated in patients taking any form of organic nitrate, as the combination can cause a sudden, potentially life-threatening drop in blood pressure. Tadalafil is also contraindicated with guanylate cyclase stimulators such as riociguat.
Patients should not use tadalafil if sexual activity is inadvisable due to cardiovascular status. Use with alpha-blockers, antihypertensives, or substantial amounts of alcohol may lead to symptomatic hypotension.
Important
Non-Medical Use
Tadalafil's approved indications are limited to erectile dysfunction, benign prostatic hyperplasia, and pulmonary arterial hypertension. Use for bodybuilding, performance enhancement, or training support falls outside approved medical indications and should be considered in the context of documented safety concerns, including cardiovascular risks and drug interactions.
Potential Adverse Effects
The most commonly reported adverse effects in clinical trials include headache (11–15%), dyspepsia (4–10%), back pain (3–6%), myalgia (1–4%), nasal congestion (2–3%), and flushing (1–3%). These effects are generally dose-related and transient.
Serious but rare adverse effects include priapism (erections lasting more than 4 hours), non-arteritic anterior ischemic optic neuropathy (NAION), and sudden hearing decrease. Patients experiencing any of these events should seek immediate medical attention.
Conditions Requiring Medical Evaluation
Tadalafil is not appropriate for everyone. Medical evaluation should consider cardiovascular status, as sexual activity may be inadvisable in certain cardiac conditions. Tadalafil should be used with caution in patients with anatomical deformation of the penis, conditions predisposing to priapism (such as sickle cell anemia), or a history of NAION.
Dose adjustment is required in patients with hepatic or renal impairment. Tadalafil is not recommended in patients with severe hepatic impairment (Child-Pugh Class C).
Monitoring During Therapy
Medical tadalafil therapy typically involves assessment of treatment response and monitoring for adverse effects. Patients should be counseled on the signs of priapism and instructed to seek emergency care if an erection lasts more than 4 hours.
Laboratory testing of the product itself, such as the published potency report shown in the Lab Reports tab, is separate from clinical monitoring of the person using tadalafil.
Product Care
Storage & Handling
Store in the original packaging, protected from excessive heat, moisture and direct light. Keep all medications out of the reach of children. Follow the storage instructions provided with the product packaging.
Further Safety Information
Shipping & Authenticity
Shipping & Product Authenticity
Cialis 50 mg is supplied through the official Stealth Labs distribution chain and shipped in original manufacturer packaging with discreet, privacy-focused handling.
USA Domestic 3–5 business days
International 10–15 business days
Order Processing 24–48 business hours
Tracking Provided after dispatch
Direct Supply
Discreet Delivery & Original Packaging
The outer shipping package remains discreet, with privacy-focused handling and no unnecessary external product details. Products are supplied through the official Stealth Labs distribution chain.
What to Expect
- Orders are processed after payment confirmation
- USA Domestic shipping is typically faster when local stock is selected
- International orders include tracking, though update frequency may vary by destination
- Multiple warehouses may result in separate shipments when applicable
Authenticity Verification
To verify your Cialis 50 mg product, use the security code on the product packaging and cross-check it on the Stealth Labs official site. Official Stealth Labs presentation, batch-linked lab proof, and original packaging help reinforce product legitimacy and buyer confidence.
For complete delivery details, tracking policy, and reshipment terms, please see our Shipping Info page.
Storage
Cialis 50 mg Storage
Proper storage conditions help preserve product integrity and ensure the tablets remain suitable for their intended use throughout their shelf life.
Recommended Conditions
Store tadalafil tablets in a cool, dry place away from direct sunlight and excessive heat. Keep the tablets in their original packaging until use to protect them from moisture and contamination.
Do not store in areas subject to temperature extremes, such as bathrooms or near kitchen appliances. Keep out of reach of children and pets.
Quick Reference
Do & Don't
- Do store in a cool, dry place
- Do keep in original packaging
- Do check expiration date before use
- Don't expose to direct sunlight
- Don't store in humid environments
- Don't use if packaging appears compromised
Frequently Asked Questions
Cialis 50 mg FAQ
Answers to common questions about Cialis 50 mg, tadalafil citrate, its mechanisms, dosage considerations and laboratory testing.
What is Cialis 50 mg used for?
Cialis 50 mg contains tadalafil citrate, a PDE5 inhibitor. In medical practice, tadalafil is FDA-approved for erectile dysfunction, benign prostatic hyperplasia, and pulmonary arterial hypertension. In non-medical bodybuilding settings, it is commonly referenced for its vasodilatory and blood-flow-enhancing properties, though such use falls outside approved medical indications.
How often should Cialis 50 mg be taken?
In medical settings, tadalafil is typically taken as a 10–20 mg on-demand dose prior to sexual activity, or as a 5 mg once-daily dose for continuous therapy. The 50 mg strength is not an FDA-approved dose; in non-medical contexts, tadalafil is commonly referenced at 10–20 mg per day.
Does Cialis 50 mg require PCT?
No, tadalafil does not require post-cycle therapy. Unlike anabolic compounds that suppress endogenous testosterone production, tadalafil operates through PDE5 inhibition and does not affect the hypothalamic-pituitary-gonadal axis.
What does tadalafil citrate do?
Tadalafil citrate inhibits the PDE5 enzyme, which normally breaks down cGMP. By preserving cGMP levels, tadalafil promotes smooth muscle relaxation and increased blood flow in target tissues when nitric oxide is released. This mechanism underlies its approved medical uses and its off-label applications.
How long does tadalafil take to work?
Tadalafil reaches peak plasma concentrations approximately 2 hours after oral administration. For on-demand use, it is typically taken at least 30–60 minutes before anticipated sexual activity. Its effects can last up to 36 hours, which is significantly longer than other PDE5 inhibitors.
Is tadalafil the best PDE5 inhibitor?
There is no single PDE5 inhibitor that is universally best. Tadalafil is distinguished by its long duration of action (up to 36 hours), while sildenafil has a faster onset. The appropriate choice depends on individual needs, preferences, and medical circumstances.
What is the difference between tadalafil and sildenafil?
Both tadalafil and sildenafil are PDE5 inhibitors, but they differ in duration of action and selectivity. Tadalafil has a longer half-life (approximately 17.5 hours vs. 4 hours for sildenafil) and a reported efficacy window of up to 36 hours. Tadalafil also inhibits PDE11 to some extent, which may account for its unique side effect profile including back pain and myalgia.
What is the difference between tadalafil and vardenafil?
Tadalafil and vardenafil are both PDE5 inhibitors, but tadalafil has a significantly longer duration of action. Vardenafil's half-life is approximately 4–5 hours, similar to sildenafil, while tadalafil's is approximately 17.5 hours. This makes tadalafil more suitable for those seeking a longer window of efficacy.
Is 50 mg of tadalafil a lot?
Yes, 50 mg is significantly higher than any FDA-approved tadalafil dose. The maximum approved on-demand dose is 20 mg, and the maximum approved daily dose is 5 mg. The 50 mg strength represents a substantially higher exposure than standard medical use and would be expected to increase the risk and severity of adverse effects.
What strength is Cialis 50 mg?
Cialis 50 mg is labeled at 50 mg of tadalafil citrate per tablet. It is supplied as 100 oral tablets per package, giving 5,000 mg of total labeled content.
Is Cialis 50 mg lab tested?
Yes. A published laboratory report dated June 7, 2024 measured Cialis 50 mg at 48.96 mg per tablet, equivalent to 97.92% of its 50 mg label claim. The complete report can be viewed in the Lab Reports tab. Laboratory results apply to the tested sample represented by the individual report.
Related Offers
Shipped International
Ajanta Pharma, India
Drug Class: PDE5 Inhibitor
Active Substance: Tadalafil Citrate 20mg
Active Life: 17.5 Hours
Average Dose: 10-20 mg/day
Liver Toxicity: No
Aromatization Rate: No
Anabolic Rate: Not a steroid
Androgenic Rate: Not a steroid
This Price Is Per 100 Tablets
Active Substance: Tadalafil Citrate 20mg
Active Life: 17.5 Hours
Average Dose: 10-20 mg/day
Liver Toxicity: No
Aromatization Rate: No
Anabolic Rate: Not a steroid
Androgenic Rate: Not a steroid
This Price Is Per 100 Tablets
$110.00
British Dragon Pharmaceuticals
Product Information Compound Details
Active Substance Tadalafil Long-Acting Phosphodiesterase Type 5 (PDE5) Inhibitor
20 mgStrength 20 mg/tablet
Package 20 or 100 Tablets 400 mg or 2,000 mg Total Labeled Content
Form Oral Tablets
Drug Class PDE5 Inhibitor
Estimated Half-Life Approximately 17.5 Hours
Manufacturer British Dragon
Shipped International
Ajanta Pharma, India
Drug Class: PDE5 Inhibitor
Active Substance: Tadalafil Citrate 20mg
Active Life: 17.5 Hours
Average Dose: 10-20 mg/day
Liver Toxicity: No
Aromatization Rate: No
Anabolic Rate: Not a steroid
Androgenic Rate: Not a steroid
This Price Is Per 1 sachet
Active Substance: Tadalafil Citrate 20mg
Active Life: 17.5 Hours
Average Dose: 10-20 mg/day
Liver Toxicity: No
Aromatization Rate: No
Anabolic Rate: Not a steroid
Androgenic Rate: Not a steroid
This Price Is Per 1 sachet
$20.00
Axiolabs
Product Information Compound Details
Active Substance Tadalafil Long-Acting Phosphodiesterase Type 5 (PDE5) Inhibitor
20 mgStrength 20 mg/tablet
Package 20 or 100 Tablets 400 mg or 2,000 mg Total Labeled Content
Form Oral Tablets
Drug Class PDE5 Inhibitor
Estimated Half-Life Approximately 17.5 Hours
Manufacturer Axiolabs
Kalpa Pharmaceuticals LTD, India
Product Information
Compound Details
Active Substance
Tadalafil Citrate
Long-acting PDE5 inhibitor for erectile dysfunction
20 mg/tablet
Strength
20 mg/tablet
Package
20 or 100 Tablets
400 mg or 2,000 mg total labeled content
Form
Oral Tablet
Half-Life
Approximately 17.5 Hours
Drug Class
Phosphodiesterase-5 Inhibitor
Manufacturer
Kalpa Pharmaceuticals
Lab Tested
Domestic & International
Buy 5+ for $56.73 and save $21.35
Dragon Pharma, Europe
Product Information
Compound Details
Active Substance
Tadalafil Citrate
Long-acting PDE5 inhibitor
20 mg/tablet
Strength
20 mg/tablet
Package
100 Tablets
2,000 mg total labeled content
Form
Oral Tablet
Drug Class
PDE5 Inhibitor
Manufacturer
Dragon Pharma
Half-Life
Approximately 17.5 Hours
$61.00