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Unicontin 400mg Tablet

Generic: Theophylline

Type: Tablet

Pack Size: 10 Pcs

Theophylline 400 is used for Asthma, Chronic obstructive pulmonary disease, Bronchospasm, Apnoea of prematurity

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Discount Price: ৳ 61.74
MRP: ৳ 63 2% Off

⪼ Save  ৳: 1.26  in this Product


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✅ Description:

Pack Image of Unicontin 400 mg Tablet
Unicontin contains Theophylline, a bronchodilator classified as a Methylxanthine. It works by relaxing the smooth muscles in the airways and reducing airway responsiveness to stimuli, making breathing easier. Additionally, Theophylline enhances diaphragmatic muscle contraction. Its half-life varies based on individual factors, typically ranging from 3 to 9 hours in adult non-smokers with uncomplicated asthma.

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✔️ Unicontin is used for:
  • Managing acute asthma attacks.
  • Long-term treatment of chronic asthma (both symptomatic relief and prevention).
  • Controlling nighttime asthma and early morning wheezing.
  • Treating chronic obstructive pulmonary disease (COPD), including chronic bronchitis and emphysema, as well as acute COPD exacerbations.
  • Managing apnea in premature infants.
    Take this medication as per the advice of a registered physician.
✔️ Dosage & Administration

The dose of Theophylline should be personalized based on peak serum concentration to maximize benefits while minimizing side effects. Most sustained-release formulations are taken every 12 hours in adults, though some children may require dosing every 8 hours due to rapid metabolism. Recommended maintenance doses:

  • 16 years or older: 10 mg/kg/day (maximum 900 mg/day)
  • 12-15 years: 13 mg/kg/day
  • 9-11 years: 16 mg/kg/day
  • 1-8 years: 24 mg/kg/day
  • 6 months-1 year: 12-18 mg/kg/day
  • 1-6 months: 10 mg/kg/day
    Take this medication as per the advice of a registered physician.

Pediatric Use: Neonates have a significantly reduced ability to clear Theophylline, requiring careful dose selection and monitoring.

✔️ Drug Interactions:
  • Avoid concurrent use with other xanthine derivatives.
  • Increased clearance (may require a higher dose): Barbiturates, carbamazepine, lithium, phenytoin, rifampicin, and sulphinpyrazone.
  • Decreased clearance (may require a lower dose): Allopurinol, cimetidine, ciprofloxacin, corticosteroids, erythromycin, frusemide, isoprenaline, oral contraceptives, and thiabendazole.
  • Theophylline may worsen hypokalemia when used with beta-2 agonists, steroids, diuretics, or in hypoxic conditions, requiring potassium level monitoring.
✔️ Contraindications:
  • Hypersensitivity to Theophylline or any component of the medication.
✔️ Side effects are rare at normal doses but may include:
  • Gastrointestinal discomfort
  • Headache
  • Nausea
  • Insomnia
  • Hypotension
  • Central nervous system stimulation and increased urination, especially in children.
✔️ Pregnancy & Lactation:
  • Theophylline’s effects on fetal health are not well established, so it should only be used during pregnancy if necessary.
  • Theophylline is excreted in breast milk and may cause mild irritability or toxicity in infants. Serious effects are unlikely unless the mother has toxic Theophylline levels.
✔️ Precautions & Warnings:
  • Consider potential drug interactions and physiological conditions that may affect Theophylline clearance.
  • Adjust dosage carefully before starting Unicontin, before increasing the dose, and during follow-up.
  • Begin with a low dose and gradually increase if tolerated.
✔️ Storage Conditions:

Store in a cool, dry place, away from light. Keep out of reach of children.

Frequently Asked Questions (FAQ)

Theophylline blocks phosphodiesterase, increasing cAMP levels, which leads to: Bronchodilation (airway relaxation). Diuresis (increased urination). CNS and heart stimulation. Increased gastric acid secretion.

Use with caution in patients with: Peptic ulcers, hyperthyroidism, diabetes, glaucoma. Severe hypoxemia, epilepsy, hypertension, heart failure, cardiac arrhythmias, or other cardiovascular diseases. COPD, cor pulmonale, and febrile illness. Dosage adjustments may be needed in smokers, elderly patients, children, and those with hepatic or renal impairment.

1.5-6 months: 10 mg/kg/day (divided doses). 6-12 months: 12-18 mg/kg/day (divided doses). 1-9 years: 8 mg/kg every 8 hours (extended release). 9-12 years: 6.4 mg/kg every 8 hours (extended release). 12-16 years: 5.6 mg/kg every 8 hours (extended release). 1-15 years (<45 kg): Starting dose: 12-14 mg/kg/day (max 300 mg/day). If tolerated after 3 days: Increase to 16 mg/kg/day (max 400 mg/day). If needed and tolerated after more days: Increase to 20 mg/kg/day (max 600 mg/day). 1-15 years (>45 kg): Starting dose: 300-400 mg/day (once or twice daily). If tolerated after 3 days: Increase to 400-600 mg/day (once or twice daily). Maximum dose: 600 mg/day.

Heart rate. Central nervous system (CNS) effects. Respiratory rate. Blood gas levels (arterial or capillary). Theophylline serum levels to avoid toxicity.

For patients with hepatic impairment, the dose should be reduced to prevent toxicity.

Loading dose: 5 mg/kg if no theophylline was given in the last 24 hours. 2.5 mg/kg if theophylline was given in the last 24 hours.

The maintenance dose ranges from 10-16 mg/kg/day. Starting dose: 300-400 mg/day, once or twice daily. If tolerated after 3 days, the dose may be increased to 400-600 mg/day (once or twice daily). Maximum dose: 600 mg/day. Sustained-release (SR) / controlled-release (CR) tablets or capsules: 200/300 mg: One tablet/capsule every 12 hours. 400 mg: One tablet/capsule once daily in the evening.

Theophylline is contraindicated in: Patients allergic to xanthine derivatives. Patients with porphyria (a group of disorders affecting the nervous system and skin).

Yes, elderly patients should use a reduced dose due to slower drug metabolism and increased sensitivity.

For acute asthma, the recommended loading dose is 5 mg/kg if the patient has not received theophylline or aminophylline before.
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