7.    Debt Agreements

Horizon and Molteni Loans

In March 2018, we entered into an Amended and Restated Venture Loan and Security Agreement (the "Loan Agreement") with Horizon and Molteni pursuant to which Horizon assigned approximately $2.4 million of the $4.0 million outstanding principal balance of its loan to us to Molteni and Molteni was appointed as the collateral agent and assumed majority and administrative control of the loan. Under the Loan Agreement, Molteni had the right to convert its portion of the debt into shares of our common stock at a conversion price of $216.00 per share and was required to effect this conversion of debt to equity upon completion of an equity financing meeting specified criteria. In connection with the Loan Agreement, we issued warrants to purchase an aggregate of 223 shares of our common stock with an exercise price per share of $216.00 to Horizon.

In September 2019, we entered into an amendment to the Loan Agreement pursuant to which the interest-only payment and forbearance periods were extended by one year to December 31, 2020 and the maturity date was extended by one year to June 1, 2022. In connection with the amendment to the Loan Agreement, the final payments to the lenders were increased by an aggregate of approximately $0.3 million (exclusive of a restructuring fee payable to Horizon) and the conversion provisions related to Molteni's portion of the loan amount were revised to eliminate the mandatory conversion feature, to reduce the conversion price to $6.75 and to cap the number of shares issuable upon conversion to 114,093.

In October 2020, we entered into the DSRA Agreement with Molteni and Horizon to settle our obligations for $1.6 million in cash, the transfer of certain Probuphine assets to Molteni, including all of our manufacturing equipment located at DPT, and the termination of our rights to future payments under the Purchase Agreement with Molteni.

Paycheck Protection Program Loan

On April 20, 2020, we received an approximately $654,000 loan (“PPP Loan”) pursuant to the Paycheck Protection Program of the CARES Act that bore interest at the annual rate of 1.0% and matured in April 2022. The proceeds of the PPP Loan were to be used to retain workers and maintain payroll and make mortgage interest, lease and utility payments and were subject to forgiveness in accordance with requirements of the Small Business Administration. The PPP Loan originally had a six-month deferral of payments period which was extended to sixteen months during the third quarter of 2020. In May 2021, the entire balance of the PPP loan along with accrued interest was forgiven and the approximately $0.7 million gain on extinguishment of the debt was included in other income (expense) in our condensed statements of operations and comprehensive loss.