Greetings. The correct question is did you have the capacity to sign the agreement and enter into a contract at the time of your drug use. If I remember the research I did on this in the past when someone came in to sign their separation agreement while they were drunk, the answer is that no, you will not be able to invalidate the separation agreement.
First, if you voluntarily put yourself in a drug induced state, then it is not likely that you will be able to say that your voluntary intoxication caused you to be incapacitated to sign a contract.
Second, the time period for you to object to the separation agreement has probably passed and the affirmative defense of laches or estoppel should apply. Thank you and sorry to hear about your predicament.
Janet L. Fritts
Attorney with Rosen Divorce
4101 Lake Boone Trail, Suite 500
Raleigh, North Carolina 27607
919.787.6668 main phone
919.256.1665 direct fax
10925 David Taylor Drive, Suite 100
Charlotte, North Carolina 28262
704.644.2831 main voice
704.307.4595 main fax
The response posted above is based upon the limited factual information made available and is not intended as a full and complete response to the question. The only reliable manner to obtain complete and adequate legal advice is to consult with an attorney, fully explain your situation, and allow the attorney sufficient opportunity to research the applicable law and facts required to render an accurate opinion. The basic information provided above is intended as a public service but a full discussion with an attorney should be undertaken before taking any action.