Richnight Tablet 3 mg (Doxepin Hydrochloride)

Adult dosage

Adults: The recommended dose of this medication is 6 mg once daily; for some patients, 3 mg once daily may be appropriate as prescribed by a physician. Elderly patients aged 65 years and older: The recommended initial dose of this medication is 3 mg once daily. As prescribed by a physician, a maximum of 6 mg daily may be administered. Do not administer more than 6 mg of this medication per day. This medication should be taken within 30 minutes before bedtime and should not be taken within 3 hours after a meal to minimize effects on the following day.

This medication should be used with caution as sleep disorders may be symptoms of physical or mental illnesses; a thorough evaluation of the patient's condition is required before use. If insomnia does not improve after taking the medication for 7-10 days, other psychiatric or internal diseases may be present, and consultation with a specialist is necessary. During the use of this medication, behaviors such as sleep driving may occur, therefore it is advised to avoid driving or operating hazardous machinery. Taking this medication with alcohol or other central nervous system depressants may increase these risks; therefore, it should never be taken together. Patients with depression may experience worsening of suicidal thoughts or behaviors while on this medication, so they should report any new behavioral changes to their doctor immediately. This medication has a central nervous system depressant effect, which may cause drowsiness or decreased concentration, so caution is necessary. When used in combination with other drugs that have central nervous system depressant effects, such as alcohol or antihistamines, sedation may be intensified, thus caution is advised. Patients who are allergic to this medication or its components, those taking certain antidepressants (MAO inhibitors), untreated glaucoma, or those with severe urinary retention should not use this medication. During pregnancy, there may be risks to the fetus, so it should be taken very cautiously only when necessary and under the judgment of a doctor. For breastfeeding mothers, this medication may pass into breast milk and affect the baby, so the decision to breastfeed should be discussed with a physician. The safety and efficacy in children have not been established, thus its use is not recommended. Elderly patients may be more sensitive to this medication, so it is advisable to start with a lower dose and closely monitor their condition. Patients with impaired liver function may have increased drug concentration, indicating the need to start at a lower dose and monitor carefully. Patients with sleep apnea should be especially cautious as this medication may worsen respiratory function; severe cases should avoid use. This medication has low abuse potential and is less likely to cause dependence, but any abnormal behaviors or drug-seeking behavior during treatment should be discussed with a physician. Overdose may lead to severe toxicity, requiring immediate emergency treatment at a medical facility, and self-treatment should be avoided.

Drowsiness, Sedation, Upper Respiratory Infection, Nausea, Hypertension, Anemia, Thrombocytosis, Atrioventricular Block, Palpitations, Tachycardia, Premature Ventricular Contractions, Ear Pain, Hearing Loss, Motion Sickness, Tinnitus, Tympanic Membrane Perforation, Congestion, Blurred Vision, Eyelid Spasm, Diplopia, Eye Pain, Decreased Lacrimation, Abdominal Pain, Dry Mouth, Gastroesophageal Reflux, Vomiting, Indigestion, Constipation, Gum Bleeding, Blood in Stool, Oral Vesicles, Weakness, Chest Pain, Fatigue, Chills, Gait Disturbance, Peripheral Edema, Hyperbilirubinemia, Hypersensitivity Reaction, Bronchitis, Fungal Infection, Laryngitis, Sinusitis, Dental Infection, Urinary Tract Infection, Viral Infection, Soft Tissue Infection, Eye Infection, Folliculitis, Viral Gastroenteritis, Shingles, Tendon Sheath Inflammation, Influenza, Lower Respiratory Infection, Onychomycosis, Pharyngitis, Pneumonia, Abdominal Trauma, Falls, Joint Sprain, Fracture, Skin Laceration, Elevated Blood Sugar, Increased ALT, Decreased Blood Pressure, Increased Blood Pressure, ECG ST-T Segment Abnormality, ECG QRS Complex Abnormality, Decreased Heart Rate, Decreased Neutrophil Count, ECG QRS Axis Abnormality, Increased Aminotransferase, Decreased Appetite, Appetite Loss, Hyperkalemia, Hypermagnesemia, Increased Appetite, Hypokalemia, Arthralgia, Back Pain, Myalgia, Neck Pain, Limb Pain, Decreased Joint Range of Motion, Muscle Cramps, Lethargy, Stage 1 Lung Adenocarcinoma, Malignant Melanoma, Dizziness, Dysgeusia, Somnolence, Paresthesia, Syncope, Loss of Taste, Ataxia, Cerebrovascular Accident, Attention Deficit, Migraine, Sleep Paralysis, Vasovagal Syncope, Tremors, Abnormal Dreams, Adjustment Disorder, Anxiety, Depression, Confused State, Euphoric Mood, Insomnia, Decreased Libido, Nightmares, Breast Cyst, Dysmenorrhea, Dysuria, Nocturnal Urgency, Hemoglobinuria, Nocturia, Congestion, Throat Pain, Sinus Congestion, Wheezing, Cough, Dysphonia, Nasopharyngeal Disorder, Rhinorrhea, Respiratory Distress, Skin Irritation, Cold Sweat, Dermatitis, Erythema, Hyperhidrosis, Itching, Rash, Rosacea, Pallor, Uncontrolled Blood Pressure, Hematoma, Facial Flushing, Constipation, Urinary Retention, Disorientation, Hallucinations, Numbness, Sensory Disturbance, Extrapyramidal Symptoms, Seizures, Delayed Onset Movement Disorder, Aphthous Stomatitis, Indigestion, Increased Libido, Testicular Swelling, Gynecomastia, Increased Milk Production, Breast Enlargement, Elevated Blood Sugar, Decreased Blood Sugar, Syndrome of Inappropriate Antidiuretic Hormone Secretion, Tinnitus, Weight Gain, Sweating, Flushing, Jaundice, Hair Loss, Worsening of Asthma, High Fever, Confusion, Concentration Problems, Transient Visual Hallucinations, Pupil Dilation, Anxiety, Hyperactive Reflexes, Dizziness, Drowsiness, Muscle Rigidity, Vomiting, Hypothermia, High Fever

This medication may be sensitive to air or moisture, so it is important to store it in a tightly closed container. The storage temperature should be kept between 1 degree and 30 degrees Celsius, avoiding extremely hot or cold conditions.

Appearance

Blue oval tablet

Package unit

30 tablets/bottle, 100 tablets/bottle