Product image of Lidaprim Forte (Sulfametrole, Trimethoprim) supplied by GNH India

Lidaprim Forte

Active Ingredient:
Sulfametrole, Trimethoprim
Origin:
EU

Lidaprim Forte (Sulfametrole, Trimethoprim)

Sulfametrole, the active ingredient in Lidaprim Forte, is a sulfonamide antibiotic presented as an oral formulation for oral use. It treats a range of bacterial infections, including urinary tract infections, respiratory tract infections and Pneumocystis jirovecii pneumonia, primarily in adult patients.

GNH India supplies Lidaprim Forte as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide. The company adheres to stringent quality standards and provides regulatory‑compliant sourcing for global healthcare providers.

Manufacturer / TM Owner

Rokitan Gmbh

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Indications & Clinical Uses

Lidaprim Forte, a sulfonamide/trimethoprim combination, is employed to treat bacterial infections affecting several organ systems.

  • Urinary tract infection: effective for uncomplicated UTIs caused by susceptible bacteria.
  • Acute bacterial otitis media: helps eradicate middle‑ear pathogens.
  • Respiratory tract infection: used for community‑acquired bronchitis and sinusitis.
  • Pneumocystis jirovecii pneumonia prophylaxis: prevents PCP in immunocompromised patients.
  • Traveler's diarrhea: treats bacterial causes of acute diarrhoea in adults.

How It Works

  • The sulfonamide component (sulfametrole) inhibits dihydropteroate synthase, blocking the synthesis of dihydropteroic acid, while the trimethoprim component inhibits dihydrofolate reductase. Together they impede bacterial folic‑acid metabolism, preventing DNA synthesis and resulting in bacteriostatic activity against a broad spectrum of susceptible organisms.

Side Effects

Adverse reactions may occur with any antibacterial therapy.

Common Side Effects

  • Nausea: mild to moderate stomach upset.
  • Vomiting: occasional episodes after dosing.
  • Rash: erythematous skin eruptions.
  • Headache: transient cranial discomfort.
  • Photosensitivity: increased sun sensitivity.
  • Taste disturbance: altered taste perception.

Serious or Rare Side Effects

  • Stevens‑Johnson syndrome: severe mucocutaneous reaction.
  • Toxic epidermal necrolysis: extensive skin detachment.
  • Severe neutropenia: marked reduction in white blood cells.
  • Hemolytic anemia: destruction of red blood cells.
  • Hepatic dysfunction: elevated liver enzymes.
  • Renal impairment: acute kidney injury.

Precautions & Warnings

When prescribing Lidaprim Forte, clinicians should consider several safety aspects.

  • Renal function: adjust dose in severe impairment.
  • Hepatic disease: use with caution in liver dysfunction.
  • Sulfonamide allergy: contraindicated in patients with known hypersensitivity.
  • Pregnancy: avoid unless benefits outweigh potential risks.
  • Drug interactions: review concomitant medications for possible interactions.
  • Store at ambient temperature: keep in original container, protect from moisture and light.

Avoid Interactions

Lidaprim Forte can alter the activity of other medicines; awareness of key interactions is essential.

Major Interactions (Avoid)

  • Methotrexate: increased toxicity and bone‑marrow suppression.
  • Warfarin: enhanced anticoagulant effect, risk of bleeding.
  • Phenytoin: reduced efficacy of phenytoin.
  • Sulfonylureas: heightened risk of hypoglycaemia.
  • Cytotoxic chemotherapy: additive bone‑marrow suppression.

Moderate Interactions (Monitor Closely)

  • ACE inhibitors: potential for hyperkalaemia.
  • Loop diuretics: increased risk of renal dysfunction.
  • Oral contraceptives: possible reduction in contraceptive effectiveness.

Frequently Asked Questions

Lidaprim Forte is a fixed‑dose combination of sulfametrole and trimethoprim indicated for the treatment of uncomplicated urinary tract infections, acute bacterial otitis media, community‑acquired respiratory tract infections, prophylaxis of Pneumocystis jirovecii pneumonia in immunocompromised patients, and bacterial traveler’s diarrhea.

The sulfonamide component blocks dihydropteroate synthase, preventing synthesis of dihydropteroic acid, while trimethoprim inhibits dihydrofolate reductase. This dual blockade disrupts bacterial folic‑acid metabolism, halting DNA synthesis and producing a bacteriostatic effect against susceptible organisms.

The dosage of Lidaprim Forte is individualized by the prescribing clinician based on the infection being treated, patient age, renal and hepatic function, and local antimicrobial guidelines. Patients should follow the exact regimen provided by their healthcare professional.

Safety data for sulfametrole/trimethoprim in pregnancy are limited, and the combination is generally avoided unless the potential benefit justifies the risk. It is excreted in breast milk, so caution is advised for nursing mothers, and a healthcare provider should assess the risk‑benefit ratio.

To request Lidaprim Forte, submit an enquiry on the product page at gnhindia.com specifying the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and any required import documentation.

Compared with single‑agent sulfonamides, the sulfametrole/trimethoprim combination offers broader coverage and synergistic inhibition of folic‑acid synthesis, often resulting in lower resistance rates. Relative to other oral antibiotics such as amoxicillin, it provides effective activity against certain Gram‑negative pathogens but shares a similar safety profile regarding sulfonamide‑related reactions.

Lidaprim Forte should be stored at ambient temperature, below 25 °C, in its original packaging to protect from moisture and light. Keep the product out of reach of children and avoid storing in areas with high humidity or direct sunlight.

Lidaprim Forte is taken orally, usually with a full glass of water. It may be taken with or without food, but taking it with meals can reduce gastrointestinal upset. Patients should swallow tablets whole and not crush or chew them unless specifically instructed.

Serious adverse events include Stevens‑Johnson syndrome, toxic epidermal necrolysis, severe neutropenia, hemolytic anemia, hepatic dysfunction and acute renal impairment. Prompt medical attention is required if patients develop widespread rash, blistering, fever, unexplained bruising, jaundice or a sudden decrease in urine output.

Lidaprim Forte is contraindicated in individuals with a known hypersensitivity to sulfonamides, trimethoprim, or any component of the formulation. It should also be avoided in patients with severe renal or hepatic impairment unless dose adjustments are made, and in pregnant women unless the therapeutic benefit outweighs potential risks.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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