How create nested relationship over three models

Hello

I'm completely new to Laravel and have the following situation:

I have the following Models:

• Treatments; belongsToMany Products, belongsTo User
• Products; belongsToMany Treatments, hasManyPrescriptions
• Prescriptions; ??
• Users; hasMany Treatments

Treatments can have many Products. Each associated Product to a Treatment can have a unique Prescription.

The tables are:

• Users (id, name)
• Treatments (id, name, user_id)
• Products (id, name)
• Product_Treatment (product_id, treatment_id)
• Prescriptions (id, amount, product_id, treatment_id, user_id)

I manage to create the correct relations from products to each treatment. What I cannot figure out is how to relate the prescription to the product in the corresponding treatment. A product can belong to many treatments. If I use a normal pivot table for products_prescription, then this relation applies to all treatments. This should not be the case.

How should I setup the relationship, so I'm able to use this in blade? @foreach ($treatment->products as $product) {{ $product->name }} {{ $product->prescription->amount }} @endforeach

Thanks a lot for any hint or help. Aldo