E-commerce SEO duplicate content

I have 1 product in 3 variations. Lets call them: Viagra 100mg, Viagra 150mg, Viagra 200mg.

For each of them I have to use a seperate product page as I have a special pricing table/quantity selector (therefore I technically cannot combine the 3 products on one page). That means if I would index all of them I would get a duplicate content problem. What would be the best way to rank for those products and avoid duplicate content?

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Option 1: Only Index 1 of the 3 Product pages and put 2500+ words article as product description to target the keywords
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Option 2: Deindex all 3 product pages and create a landing page with 2500+ article that links to the 3 product variations?
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Does one of these options has an advantage over the others?

Im looking forward to hear your thoughts. Im glad for any opinion that is shared.

No one here who has an opinion about this?

I think you can solve this issue by pricing configuration.

If you don want to go for pricing configuration, second option is best.

Create a great landing page for product and then three buy buttons that links to three pages.

You might want to noindex those three pages.