1. Core Legal Issue: Why antidepressant use becomes relevant in marriage disputes

Chinese courts generally do not treat antidepressant use as disqualifying evidence. Instead, it becomes relevant only when it intersects with:

• Mental capacity at time of marriage
• Fraud or concealment during marriage registration
• Ability to fulfill marital obligations
• Child custody fitness
• Fault in divorce breakdown
• Medical condition affecting consent validity

Key principle:

Medication use ≠ legal incapacity unless it significantly impairs cognition or volition.

2. Judicial Standards Applied by SPC Courts

Courts typically apply three standards:

(A) Capacity Test

Whether the spouse could:

• understand marriage consequences
• freely express intent
• manage personal/legal affairs

(B) Causation Test

Whether antidepressant use:

• directly caused incapacity OR
• merely treated mild/moderate depression (not disqualifying)

(C) Disclosure & Good Faith Test

Whether one party:

• concealed severe psychiatric condition
• misrepresented mental health during marriage

3. Illustrative Case Law (6 SPC-style adjudication patterns)

Case 1: Mild Depression + Valid Marriage Consent

Facts:
Wife had been on SSRIs for 2 years before marriage. Husband sought annulment claiming “medical incapacity.”

Held:
Marriage valid.

Reasoning:

• Medication was for mild/moderate depression
• No evidence of cognitive impairment
• Consent during registration was voluntary

Rule Established:
Antidepressant use alone does not invalidate marital consent.

Case 2: Severe Major Depression with Psychotic Episodes

Facts:
Husband concealed hospital records showing recurrent severe depressive episodes with hallucinations at time of marriage registration.

Held:
Marriage annulled.

Reasoning:

• Temporary incapacity at time of registration proven
• Lack of informed consent from spouse
• Concealment amounted to misrepresentation

Rule Established:
Severe psychiatric condition affecting cognition can invalidate marriage consent if present at registration.

Case 3: Medication Non-Disclosure but Stable Functioning

Facts:
Wife did not disclose antidepressant use; husband later claimed fraud.

Held:
No annulment.

Reasoning:

• No legal duty to disclose all medical treatment
• Functionality in daily life and employment intact
• No impact on marital consent validity

Rule Established:
Non-disclosure of antidepressant use ≠ fraud unless it materially affects marriage purpose.

Case 4: Custody Dispute – Stability Over Diagnosis

Facts:
Father argued mother’s antidepressant use made her unfit for custody.

Held:
Custody granted to mother.

Reasoning:

• Stable treatment compliance
• No evidence of neglect or harm to child
• Psychological condition managed

Rule Established:
Custody depends on parenting capacity, not diagnosis or medication status.

Case 5: Divorce Fault Compensation Claim

Facts:
Husband claimed wife’s depression caused “fault-based breakdown,” seeking compensation reduction.

Held:
No fault attribution.

Reasoning:

• Depression is medical condition, not marital fault
• No intentional wrongdoing shown
• Divorce based on irreconcilable differences

Rule Established:
Mental illness is not “fault” under marital compensation rules.

Case 6: Capacity Fluctuation During Marriage Period

Facts:
Wife had episodic depression; during one severe episode she signed property transfer documents under heavy sedation.

Held:
Transaction partially invalid; marriage unaffected.

Reasoning:

• Marriage consent earlier was valid
• Specific civil act during incapacitated period invalid
• Requires act-by-act capacity analysis

Rule Established:
Capacity is transaction-specific, not blanket invalidation of marriage.

4. Key Doctrinal Principles from SPC Practice

1. Medical condition is not legal incapacity

Depression is treated as:

• treatable medical condition
• not automatic mental incompetence

2. Antidepressant use is neutral evidence

Courts view it as:

• treatment marker, not disability marker

3. Only severe functional impairment matters

Relevant threshold:

• inability to understand marriage consequences
• inability to express free consent

4. Disclosure duty is limited

No general obligation to disclose:

• mental health history
• medication history
  unless it affects core consent capacity

5. Custody analysis is behavior-based

Courts focus on:

• caregiving ability
• emotional stability in practice
  not diagnosis labels

5. Practical Legal Takeaways

• Antidepressant use alone does not weaken marriage validity
• Courts require clear proof of incapacity at specific time
• Mental illness ≠ marital fault
• Custody decisions prioritize function over diagnosis
• Fraud claims succeed only when concealment is material and causal