Paracetamol was found to affect the growth of Vigna radiata plants. When exposed to low levels of paracetamol, the plants showed improved photosynthetic efficiency. However, higher concentrations of paracetamol had the opposite effect, reducing chlorophyll levels and other important traits for plant growth. This suggests that paracetamol can be used as a growth regulator for Vigna radiata plants, but the effects depend on the concentration used.