We consider the energy for the molecular graphs of antiviral agents like Hydroxychloroquine, Remdesivir and Chloroquine. These drugs play a vital role in the treatment of COVID-19. Let ЃЃЃ1,Ѓ2 and ЃЃ3 be the n-dimensional graphs of the molecular structures of antiviral agents Hydroxychloroquine, Chloroquine and Remdesivir, respectively. We define their energies as Ѓ�′(Ѓ1)=∑|��′|, Ѓ�′(Ѓ2)=∑|��′| and Ѓ�′(Ѓ3)=∑|��′|, respectively. Where the sets ЃЃЃЃ{�1′(Ѓ1),�2′(Ѓ1),�3′(Ѓ1),...,��′(Ѓ1)}, {ЃЃЃЃ�1′(Ѓ2),�2′(Ѓ2),�3′(Ѓ2),...,��′(Ѓ2)} and ЃЃЃЃ{�1′(Ѓ3),�2′(Ѓ3),�3′(Ѓ3),...,��′(Ѓ3)} depict the eigenvalues for the adjacency matrices of ЃЃЃ1,Ѓ2 and ЃЃ3, respectively. We have developed some basic ideas and properties in order to measure the energies for the antiviral agents Hydroxychloroquine, Chloroquine and Remdesivir.