I'm sorry, but I couldn't find any specific product with the name "OPIA 7HYDROXY 20MG 4CT CHEWABLE TABLETS". However, based on the information given, it appears this product could be a dietary supplement falling under the Kratom category.
7-Hydroxy is a common term in the kratom and opiate industry. It refers to 7-Hydroxymitragynine, an alkaloid found in the kratom leaf. It's known for its analgesic, or painkilling, effects and is considered to be one of the main active components of Kratom.
The fact that this product comes in the form of chewable tablets indicates that it's likely designed for oral consumption. The dosage given, 20mg, suggests the amount of 7-Hydroxy or possibly the amount of Kratom in each tablet.
Please consult your healthcare provider before starting any new dietary supplement regimen, especially if you have health conditions or are taking other medications. It's also essential to ensure that such products are legal in your area as regulations may vary.
Remember, product descriptions can vary greatly, so it's always a good idea to ask the specific manufacturer or seller for more information about any products you're considering.