Agonists. Agonists bind to and activate receptors in a dose-dependent manner until all opioid receptors are occupied. At this point, the response plateau is reached, and increased doses of agonist have no effect. However, continued use beyond this plateau may lead to respiratory depression and overdose.ntagonists. Antagonists bind to the same receptors as full and partial agonists but do not cause activity at the receptor. Moreover, antagonists block agonists and partial agonists from binding and therefore prevent receptor activation altogether.
Tax Deductions for Voluntary Interest Payments on Student Loans. Most taxpayers who pay interest on student loans can take a tax deduction for the expense â and you can do this regardless of whether you itemize tax deductions on your return. The rules for claiming the deduction are the same whether the interest payments were required or voluntary.
No retirement plan at work. Your deduction is allowed in full if you (and your spouse, if you are married) arenât covered by a retirement plan at work. These charts show the income range in which your deduction may be disallowed if you or your spouse participates in a retirement plan at work:1  IRA Deduction if You ARE Covered by a Retirement Plan at Work - 2014.RA Deduction Limits. You may be able to claim a deduction on your individual federal income tax return for the amount you contributed to your IRA. See. . Roth IRAs. Roth IRA contributions arenât deductible.