Lecithins, egg can be used as an excipient. Pharmaceutical excipients, or pharmaceutical auxiliaries, refer to other chemical substances used in the pharmaceutical process other than pharmaceutical ingredients. Pharmaceutical excipients generally refer to inactive ingredients in pharmaceutical preparations, which can improve the stability, solubility and processability of pharmaceutical preparations. Pharmaceutical excipients also affect the absorption, distribution, metabolism, and elimination (ADME) processes of co-administered drugs.

Pseudo Vardenafil

Licoarylcoumarin is a strong inhibitor of adenosine 3',5'-cyclic monophosphate (cAMP) phosphodiesterase. Licoarylcoumarin has antibacterial effects on the VRE strains; it has anti-HIV activity, and it has inhibitory effects on xanthine oxidase.