A Phase I Clinical Trial to Evaluate the Pharmacokinetic and Safety of Ammoxetine Hydrochloride Enteric-Coated Tablets in Participants With Mild Hepatic Impairment, Moderate Hepatic Impairment, and Normal Liver Function

Inclusion Criteria: Inclusion criteria for participants with abnormal liver function (all 7 criteria must be met): 1. Adults aged 18 \~ 75 years (inclusive), regardless of gender 2. Body weight ≥ 45.0 kg (female) or ≥ 50.0 kg (male), body mass index (BMI) in the range of 19 \~ 32 kg/m2 (inclusive); 3. Participants whose medical history, vital signs, physical examination, laboratory tests (hematology, blood biochemistry, urinalysis, coagulation function, infectious disease screening, and other relevant tests), Chest X-ray, abdominal color Doppler ultrasound, electroencephalogram (EEG), alpha-fetoprotein (AFP), plasma ammonia, abnormal prothrombin, and other examination must be deemed suitable for participation in this study by the investigator; 4. Participants and their partners must use effective contraception (e.g., condoms, inert intrauterine devices, etc.) from 2 weeks prior to screening until 6 months after the end of the study, unless they have already undergone permanent sterilization procedures, such as bilateral tubal ligation or vasectomy; furthermore, they must not donate sperm or eggs. 5. Participants must have not taken any medications within 2 weeks prior to screening, or must have been on a stable medication regimen for at least 4 weeks for the treatment of liver impairment and/or other comorbidities; 6. Participants who have mild or moderate hepatic impairment according to the Child-Pugh classification, resulting from chronic hepatic insufficiency or cirrhosis caused by a history of primary liver disease (e.g., viral hepatitis, alcoholic liver disease, autoimmune hepatitis, etc.), with the investigator determining that the patients liver function would remain stable for ≥1 month based on clinical presentation; 7. Participants who voluntarily sign the informed consent form and agree to cooperate in completing the trial according to the protocol. Inclusion criteria for participants with normal liver function (all 6 criteria must be met)： 1. Adults aged 18 \~ 75 years (inclusive), regardless of gender(matched for age and gender with the hepatic impairment group); 2. Body weight ≥ 45.0 kg (female) or ≥ 50.0 kg (male), body mass index (BMI) in the range of 19 \~ 32 kg/m2 (inclusive); 3. Participants whose medical history, vital signs, physical examination, laboratory tests (hematology, blood biochemistry, urinalysis, coagulation function, infectious disease screening, and other relevant tests), Chest X-ray, abdominal color Doppler ultrasound, and other examination must be deemed suitable for participation in this study by the investigator; 4. Participants and their partners must use effective contraception (e.g., condoms, inert intrauterine devices, etc.) from 2 weeks prior to screening until 6 months after the end of the study, unless they have already undergone permanent sterilization procedures, such as bilateral tubal ligation or vasectomy; furthermore, they must not donate sperm or eggs. 5. Participants must have not taken any medications within 2 weeks prior to screening, or must have been on a stable medication regimen for at least 4 weeks for the treatment of other comorbidities; 6. Participants who voluntarily sign the informed consent form and agree to cooperate in completing the trial according to the protocol. Exclusion Criteria: Participants meeting any of the following criteria will be excluded from this trial: 1. Individuals with a history of allergies (allergic to two or more drugs, foods, or pollens); 2. Individuals with major psychiatric disorders, renal disease, neurological disorders, or other systemic diseases that the investigator deems may affect trial results; 3. Individuals with orthostatic hypotension (a decrease in systolic blood pressure of 20 mmHg or diastolic blood pressure of 10 mmHg upon standing compared to the supine position); 4. Participants with a 12-lead ECG QTcF\>470 ms, or those with abnormal ECG findings that the study physician determines may influence the study results, or those with a history of severe arrhythmias, arrhythmia-related syncope, use of a cardiac pacemaker, or other cardiac-related conditions. Conditions include but are not limited to: heart failure; non-sustained or sustained ventricular tachycardia; sick sinus syndrome; or a family history of sudden death; 5. Smokers or heavy drinkers within 4 weeks prior to screening (consuming 14 units of alcohol per week: 1 unit = 285 mL of beer, 25 mL of spirits, or 150 mL of wine; smoking ≥5 cigarettes per day) or those with a history of substance or drug abuse within the past year; 6. Individuals with a history of dysphagia or any gastrointestinal disease affecting drug absorption; 7. Participants with CYP2D6 poor metabolizer; 8. Individuals with a positive breathalyzer test for alcohol or a positive urine test for drug abuse during the screening period; 9. Individuals who have donated or lost more than 200 mL of blood within 8 weeks prior to screening; 10. Participants who have participated in other drug clinical trials within 3 months prior to screening (as determined by the date of administration); 11. Individuals who habitually consumed excessive amounts of caffeinated beverages or foods within 4 weeks prior to screening. Examples include coffee, tea, chocolate, cola, and Red Bull (daily caffeine intake should not exceed 6 units).1 caffeine unit = 1 cup of coffee (177.4 mL) = 2 cans of cola (354.9 mL) = 1 cup of tea (354.9 mL) = 1/2 cup of energy drink = 85 g of chocolate; 12. Participants who used strong or moderate inhibitors of liver enzymes (CYP2D6) within 4 weeks prior to screening; 13. Individuals who have consumed dragon fruit, mango, pomelo, grapefruit, lime, star fruit, pomegranate, or foods or beverages prepared from these fruits within 7 days prior to screening; 14. Pregnant or breastfeeding women, or female participants who test positive for pregnancy during the screening period; 15. Individuals with estimated glomerular filtration rate (eGFR) \< 75 mL/min/1