Crystalline molecular comlpexes of tadalafil
US9040535B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Oct 7, 2013 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Oct 7, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Crystalline molecular complexes of tadalafil are disclosed. The crystalline molecular complexes include those of tadalafil and oxalic acid, tadalafil and 4-hydroxybenzoic acid, tadalafil and 3-phenylpropanoic acid, tadalafil and malonic acid, tadalafil and methylparaben, and tadalafil and propylparaben. Pharmaceutical compositions containing the crystalline molecular complexes are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.