Hello,
I am full stack web developer and have done few websites, eStores, web apps etc.
I can offer you any features you want. Here are few main features I think will be appropiate for your Pharma eStore.
1. Having Role based login system, like Admin, Support Admin, Data entry admin, users etc.
2. Uploading products in bulk.
3. Uploading Stocks in bulk.
4. Uploading Prescription for users who need prescribed medicines.
5. A dashboard to verify those uploaded prescriptions.
6. Edit products.
7. Categorized database.
8. Search medical database.
9. Payment Gateway etc.
You're always welcome to discuss the requirements and possibilities of your website.
Thanks
Meeshal k