There are at least three problems here.
1. You can deduct the fair market value (what a willing buyer would pay a willing seller on the open market). What is the fair market value for an opened package of medication? How can you determine that?
2. You can only claim a donation to a US-registered exempt organization. Is this organization registered in the US? You can search here.
https://www.irs.gov/charities-non-profits/tax-exempt-organization-search
3. You can only claim a donation of non-cash items worth more than $5000 if you have a signed appraisal from a qualified appraiser (someone who has the appropriate experience and training to assign a fair market value for the particular item--obviously someone qualified to appraise drugs will not be the same person who is qualified to appraise estate sales) AND you have a signature from a qualified financial official from the recipient organization on a form 8283 that you must mail to the IRS after e-filing the rest of your return. Without a signature from the organization, your maximum donation value you can claim is $5000.
4. Regardless of the market value of the item, your tax deduction is limited to your out of pocket cost. Depending on your insurance, this might be substantially less than the original cost.
