Antiviral: Pleurotus mushrooms exert direct or indirect antiviral effects as a result of the response immune-stimulatory activity

Antitumor: Hot water extract, showed a remarkable host-mediated antitumor activity against Sarcoma

Anti-Human Immunodeficiency Virus (HIV): Ribonucleases (RNases: mol. wt. 10.7 kDa) have been isolated and characterized from the P. ostreatus that has the potentiality to neutralize HIV through degradation of viral genetic material.

Antioxidant: Fruiting bodies of Pleurotus possessed higher concentration of antioxidants than commercial mushrooms. 

Hypotensive: The level of antihypertensive property varies with mushroom species and their combinations while OM possesses blood pressure lowering activity.

Anti-Inflammatory: Pleuran, isolated from fruiting bodies of OM posseses anti inflammatory activity. Extracts give a lowering response in both acute as well as in chronic inflammation.