Medication info

Naptru Tablets 75 mg (Naftopidil)

Prescription medicationApproval withdrawn
Ingredient · strength
Naftopidil›Strength being verified
Manufacturer / importer
Cosmax Pharma Co., Ltd.
Appearance
Yellowish-white to light yellow round tablets
Packaging
30 tablets/bottle, 300 tablets/bottle
Approval status
Approval withdrawn

MFDS item code 201901080 · Approved 2019.02.21

This product's status changed to Approval withdrawn on 2023.07.19. It may no longer be sold, so consult a doctor or pharmacist before taking it.

Summary

Main use
Improvement of urinary symptoms caused by benign prostatic hyperplasia
Who uses it
Adults
Adult dosage
For adults, start with naftopidil 25mg once daily. If the effect is insufficient, gradually increase the dose to 50~75mg at intervals of 1~2 weeks, and administer orally once daily after a meal. Adjust the dose as appropriate according to symptoms; however, the maximum daily dose is 75mg.

Ingredients

Manufacturer
Cosmax Pharma Co., Ltd.

Efficacy & effects

Improvement of urinary symptoms caused by benign prostatic hyperplasia

  • Urination disorders
View approved original text

This medication is used to improve urination disorders caused by benign prostatic hyperplasia, namely symptoms such as difficulty urinating, frequent urge to urinate, and troubled urination.

Dosage and Administration

Adult dosage

For adults, start with naftopidil 25mg once daily. If the effect is insufficient, gradually increase the dose to 50~75mg at intervals of 1~2 weeks, and administer orally once daily after a meal. Adjust the dose as appropriate according to symptoms; however, the maximum daily dose is 75mg.

Precautions

This medication should not be taken by individuals allergic to any of its ingredients. Additionally, since it contains lactose, it should not be taken by those with a genetic disorder that causes lactose intolerance. Patients with impaired liver function should be cautious when using this medication as blood concentration may increase. Individuals with serious heart or cerebrovascular issues have less experience with this drug, so they should use it cautiously. Elderly individuals may have decreased liver function, so they should be closely monitored during use. When taken with blood pressure-lowering agents or certain vasodilators, there is a risk of excessively low blood pressure, so caution is required. Those with orthostatic hypotension may experience dizziness or lightheadedness after taking this medication, so they should be careful. Overdose may cause excessively low blood pressure, so the prescribed dosage must be strictly followed. Dizziness or lightheadedness may occur at the start of treatment, so caution is advised when working at heights or driving. Serious side effects such as liver dysfunction, jaundice, syncope, and loss of consciousness may occasionally occur, so if these symptoms appear, the use of the medication should be stopped immediately and a doctor consulted. Rarely, side effects such as rash, itching, headache, drowsiness, nausea, constipation, blurred vision, etc., may occur. Keep out of reach of children, and instruct patients to take it out of the packaging before use; swallowing the packaging may pose a risk of esophageal injury. This medication is a symptomatic treatment; if symptoms do not improve, consider other treatment options.

Side effects

  • Dizziness
  • staggering
  • vertigo
  • hypotension
  • discomfort in the stomach
  • liver dysfunction
  • jaundice
  • syncope
  • loss of consciousness
  • hypersensitivity
Show 65 more
  • rash
  • itching
  • urticaria
  • erythema multiforme
  • headache
  • heavy head
  • fatigue
  • drowsiness
  • tinnitus
  • numbness
  • tremors
  • taste disturbance
  • brain fog
  • dysgeusia
  • flushing
  • arrhythmia
  • tachycardia
  • diarrhea
  • constipation
  • dry mouth
  • nausea
  • vomiting
  • bloating
  • abdominal pain
  • elevated AST(GOT)
  • elevated ALT(GPT)
  • elevated LDH
  • elevated ALP
  • decreased platelet count
  • blurred vision
  • intraoperative iris hypotension syndrome
  • erythema
  • edema
  • urinary incontinence
  • chills
  • eyelid edema
  • shoulder stiffness
  • nasal congestion
  • erectile dysfunction
  • gynecomastia
  • chest pain
  • bladder malignancy
  • angina pectoris
  • cerebral infarction
  • speech impairment
  • hemorrhoids
  • worsening of urination disorder
  • hematuria
  • pyuria
  • cystitis
  • decreased urine flow
  • urinary tract infection
  • urethral pain
  • insomnia
  • back pain
  • weakness
  • fever
  • fatigue
  • ejaculatory dysfunction
  • increased sweating
  • musculoskeletal pain
  • shingles
  • bronchiectasis
  • worsening of frequent urination
  • retrograde ejaculation

Not everyone experiences these, and they can vary from person to person.

Storage

This medication is sensitive to light, so it must be stored in a container that does not allow light to enter. Additionally, it is recommended to store it at room temperature between 1°C and 30°C. Proper storage will help maintain the effectiveness of the medication safely.

Appearance and packaging

Appearance

Yellowish-white to light yellow round tablets

Package unit

30 tablets/bottle, 300 tablets/bottle

Same-ingredient medicines

Even with the same ingredient, strength, dosage form and how it is taken can differ.

Even with the same ingredient, the dose and directions can differ by strength and dosage form. Talk to a doctor or pharmacist before switching from a medication you are already taking.

Questions about this medicine

No questions yet.

For anything that needs medical judgment, consult a doctor or pharmacist.

Related searches

Search tags

Suggested searches

This drug information is based on data provided by the Korea Ministry of Food and Drug Safety.
Consult a doctor or pharmacist for accurate dosage, administration, and usage instructions.