Liquid tadalafil is a 10 mg/ml research solution of tadalafil, a selective phosphodiesterase type 5 (PDE5) inhibitor. Vi Corpus supplies it for Australian laboratories researching nitric oxide signalling, smooth muscle relaxation and blood flow.
Key research features of liquid tadalafil
- Selective PDE5 inhibition. It prevents the breakdown of cGMP, which relaxes vascular smooth muscle.
- Long half-life. Human pharmacokinetic studies report a half-life of about 17.5 hours.
- Liquid format. A measured solution makes small, precise volumes easy to prepare in the lab.
- Broad research use. It is studied in erectile function, pulmonary hypertension and urinary tract models.
- Third-party tested. Reports are available through our Lab Tests page.
Liquid tadalafil specifications
| Compound | Tadalafil |
|---|---|
| Concentration | 10 mg/ml |
| Form | Research solution in dropper bottle |
| Molecular formula | C22H19N3O4 |
| Molar mass | approx. 389.4 g/mol |
| Class | PDE5 inhibitor |
Research applications
Tadalafil is one of the most studied PDE5 inhibitors. For example, researchers use it to examine endothelial function, exercise blood flow and benign prostatic hyperplasia. Because it lasts longer than sildenafil, it also suits studies that need steady exposure. In addition, its selectivity for PDE5 over PDE6 is higher than older inhibitors, which makes it useful when visual-pathway effects need to be minimised in a study design. It sits in our erectile performance research range alongside PT-141, which works through a different, central pathway.
Storage and handling
Keep the bottle sealed and away from heat and light. Store it upright to protect the dropper.
Frequently asked questions
Why choose a liquid format?
A measured solution makes it simpler to prepare small, repeatable volumes than splitting tablets.
How is tadalafil different from PT-141?
Tadalafil acts on blood vessels through PDE5, while PT-141 acts on melanocortin receptors in the brain.
Is this product for personal use?
No. Tadalafil is a prescription medicine in Australia, so we supply it for laboratory research only.



