A reverse reaction? That term needs to be defined to figure out what you're asking.
Are you asking if Risperdal can cause psychosis (literally do the opposite of what it was designed to do)?
The answer to that question is, no.
Are you asking if it can permanently cure your illness in one dose (can it completely reverse a condition)?
The answer to that question is also, no, as it does not "cure" any disorder, it merely prevents the symptoms from occurring while it's in your system.
Do you mean, can it cause unpleasant side effects on the first dose (produce adverse reactions with only one dose)?
The answer to that question is, ABSOLUTELY. You will certainly experience at least some degree of sedation (you'll feel exhausted and unable to focus) and a possible laundry list of other side effects within as little as 20 minutes of your first dose.
The product and reactants reach a final, unchanging level.
reversible reaction
Redox is what is needed to reverse a biochemical reaction. The redox is used in science.
the rate of te forward reaction and the rate of the reverse reaction
At equilibrium, the reaction rate of the forward reaction and the reverse reaction are equal to one another. This means that the products of the forward reaction are being made at the same speed as the products of the reverse reaction.
true or false
going to an end is the removal of a product from a reaction, not permitting the reverse reaction to take place. The formation of a precipitate, gas or un-ionized compounds, such as water, are the requirements to go to completion. Once a reaction has gone to completion, the product can not form the reactants in a reverse reaction (there is no reverse reaction).
the rate of the forward reaction is greater than the rate of the reverse reaction.
When an equation is balanced, the rate of the forward reaction equals the rate of the reverse reaction.
hdrolysis
Equilibrium at this point means that the forward reaction and the backward reaction are taking place at the same rate. The formation of the products and the reactants are at equal rate.
It is not possible to reverse engineer copper. Copper is a basic element.