WHAT IS SIMULATION? Computer simulation is the discipline of designing a model of an actual or theoretical physical system, executing the model on a digital computer, and analyzing the execution output.
Efficacy is defined as the maximum effect a drug can produce, regardless of the dose. Potency is related to the amount of drug needed to produce a given effect; it is often quantified by the ED50 or EC50, which are respectively the drug dose or concentration that causes 50% of the maximum effect. Affinity is defined as a drug's ability to bind to a receptor.
Here weak attraction forces balance the affinity of a drug and the receptor. The binding surface of receptor plays an important role in the bonding of drugs and receptor. As the distance between drug and receptor increases, the strength of electrostatic forces between them also reduces.