Q: How is it possible that on the checkout page my total amount was 165.80 and the invoice you sent shows 252.75?
It is important to remember, that no matter what currency you choose, the total amount in the invoice will be in USD. Further conversion to your currency will be performed by your bank.
Q: What is the difference between generic and brand medications?
The difference is in the name, shape, color and price. Generic medications are usually named by their active ingredient and cost less, however they have exactly the same formula, action, dosage and contra-indications as the brand medicines.