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Theo-24 SR

Theo-24 SR

Theophylline

Theo-24 SR is theophylline at the lower 200mg modified-release strength for asthma and COPD, a xanthine that raises cyclic AMP in the airway.

All strengths and pack prices
StrengthPackPricePer unit
200mg30 tablets$76.50$2.55
200mg60 tablets$122.40$2.04
200mg90 tablets$165.60$1.84
200mg120 tablets$198.00$1.65
200mg180 tablets$268.20$1.49
200mg360 tablets$478.80$1.33
Active ingredient
Theophylline
Route
Oral use
Form
Modified-release capsule, hard
Strengths
200mg

You will receive a quality generic equivalent, depending on stock.

No prescription needed: we place your order for Theo-24 SR on your behalf.

Alternative names
Nuelin SA; Slo-Phyllin
Therapeutic class
Methylxanthine
Pharmacological class
Xanthine Derivative
Contraindications
hypersensitivity to Xanthines; peptic ulcer disease; unstable epilepsy
Precautions and warnings
regular blood monitoring required; inform your doctor if you smoke
Minor side effects
headache; nausea; insomnia
Moderate side effects
tachycardia; palpitations; gastric irritation
Dosage forms
Modified-release capsule, hard
Administration route
Oral use
Originator
Endo Pharmaceuticals
Onset time
1–2 hours
Duration
12–24 hours
Storage instructions
Store at room temperature away from moisture.
Drug interactions
caffeine; tobacco smoke; st. john's wort
Age restrictions
Dose adjustment required for elderly.
Serious side effects

seizures, requires immediate medical attention; arrhythmias, requires immediate medical attention

Patient summary

Theo-24 SR is theophylline at the lower 200mg modified-release strength for asthma and COPD, a xanthine that raises cyclic AMP in the airway.

Mechanism of action

Theo-24 SR acts primarily as a bronchodilator by increasing the level of cyclic adenosine monophosphate (cAMP) in smooth muscles. This mechanism relaxes bronchial muscles and exerts mild anti-inflammatory action, making it an effective treatment for chronic airflow obstruction.

Pregnancy and breastfeeding

Pregnancy: Consult healthcare professional. Breastfeeding: May pass into breast milk safely if dosed properly.

Theo-24 SR contains theophylline, a medication used to manage asthma and chronic obstructive pulmonary disease. This bronchodilator is also sold as Nuelin SA and Slo-phyllin. It is available as a 200mg tablet, designed for steady release to help with airway maintenance and improved breathing for those with chronic respiratory conditions.

Buying Theo-24 SR online

Ordering medication online offers a practical solution for expats and travellers far from a well-stocked local provider, particularly when seeking affordable access to theophylline.

What you will receive

Theo-24 SR is the originator brand name, made by Endo Pharmaceuticals. We use it here to identify the medicine only; we are not affiliated with Endo Pharmaceuticals and do not ship the original Theo-24 SR.

  • You receive a generic equivalent: the same active ingredient (Theophylline) at the same dose, mostly recognised branded generics from vetted manufacturers.
  • The exact brand supplied depends on what is in stock at the dispatching warehouse.
  • Inactive ingredients, tablet appearance and packaging can differ from the original brand; the active ingredient and dose are the same.

Are all generics really the same? Read the honest answer.