How to implement adding an object of some class with its properties to an array?

Question

Node.js

Hello! I have this telegram bot idea written in nodeJS that asks the user for the number of drops/pills, then asks for their name. The polling process takes place between Wizard scenes. Further, according to my idea, the bot should ask the following questions about each drug:
-How many days will you take the drug?
- How many times a day will you take the drug?
-What is the reception interval?
I did the process of polling the names of drugs. But I was faced with the problem of how to now enter the properties that I cited above into array objects.
Below I show the implementation of a survey about the number and names.

function PillsKeeper(pillsNumber) {
    const totalPills = pillsNumber;
    this.pillsArray = [];

    this.addPills = function(pillName) {
        if (this.pillsArray.length < totalPills) {
            this.pillsArray.push(pillName);
        }

        console.log(`${this.pillsArray.length} / ${totalPills}, ${this.pillsArray[this.pillsArray.length - 1]}`);

        return this;
    }

    this.showPills = function() {
        return this.pillsArray;
    }

    return this; //pattern цепочка вызовов
}

let pillsKeeper;


const medsHandler = Telegraf.on('text',  async ctx => {
    if (!pillsKeeper) {
        pillsKeeper = new PillsKeeper(pillsNumberTotal);
    }

    pillsKeeper.addPills(ctx.message.text);
    await pillsKeeper.showPills().length === pillsNumberTotal
        ? (ctx.reply(`Всего введено препаратов: ${pillsKeeper.showPills().join(', ')}`), ctx.wizard.next())
        : ctx.reply('Отличный препарат!!')
})

And at this point I was stuck before the question, create a class, or write the same function. Help, who can.
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