Spasfon Tablet (Phloroglucinol 80mg / Trimethylphloroglucinol 80mg)

Drug Class: Antispasmodic — Direct Smooth Muscle Relaxant | Form: Oral Tablet | Prescription Status: Prescription Only (Rx) — DRAP Registered

What is Spasfon Tablet?

Spasfon Tablet is an oral antispasmodic medicine containing two complementary smooth muscle relaxants — Phloroglucinol 80mg and Trimethylphloroglucinol 80mg — working together to rapidly relieve painful involuntary spasms of the smooth muscle lining the hollow organs of the body. Each tablet delivers double the dose of the 4ml injection formulation — providing potent antispasmodic coverage through the oral route for patients who do not require emergency injectable treatment.

Unlike NSAIDs or conventional analgesics that target pain signals in the nervous system, Spasfon acts directly on the spasming smooth muscle tissue itself — relaxing abnormal contractions at their source. This direct mechanism makes it uniquely effective for the characteristic wave-like, cramping, colicky pain (درد قولنج) caused by spasm of the intestines, bile ducts, ureters, and uterus — pain that does not respond adequately to standard analgesics alone because its root cause is muscle spasm rather than inflammation or nerve sensitisation.

Spasfon Tablet is widely used across Pakistan for conditions including irritable bowel syndrome, renal and biliary colic, menstrual cramps, and labour — providing meaningful spasm relief without the sedation, dependency risk, or significant organ toxicity associated with opioid antispasmodics or long-term NSAID use.

What is Spasfon Tablet Used For?

Spasfon Tablet is prescribed for the treatment of the following conditions involving smooth muscle spasm:

• Irritable bowel syndrome (IBS) — cramping abdominal pain and discomfort caused by abnormal intestinal smooth muscle contractions (آنتوں کی اینٹھن اور درد) — one of the most common indications in Pakistani clinical practice
• Renal colic — severe cramping pain caused by kidney stones or other obstructions triggering ureteral smooth muscle spasm (گردے کی پتھری کا درد) — used alongside NSAIDs for comprehensive pain management
• Biliary colic — sudden severe right upper abdominal pain caused by gallstone obstruction and biliary tract spasm (پتے کی پتھری کا درد)
• Menstrual cramps (dysmenorrhoea) — painful menstruation caused by excessive uterine smooth muscle contractions and spasm (ماہواری کا شدید درد)
• Adjuvant therapy during labour — helps manage excessive uterine smooth muscle spasm during labour contractions — used under obstetric supervision
• Gastrointestinal spasm — acute abdominal cramping from intestinal spasm associated with gastroenteritis, food intolerance, post-operative ileus, or functional bowel disorders
• Biliary dyskinesia — abnormal bile duct motility causing recurrent right upper abdominal cramping without gallstones
• Ureteric spasm — painful smooth muscle spasm of the ureter following stone passage, urological procedures, or catheterisation

How Does Spasfon Tablet Work?

Spasfon Tablet contains two active ingredients that work through complementary mechanisms — both targeting smooth muscle relaxation directly but through different intracellular pathways, producing a combined antispasmodic effect greater than either component alone.

Phloroglucinol — acts primarily as a phosphodiesterase inhibitor inside smooth muscle cells. By inhibiting phosphodiesterase, Phloroglucinol prevents the breakdown of cyclic AMP (cAMP) — an intracellular messenger that promotes muscle relaxation. Elevated cAMP levels activate pathways that inhibit the contractile machinery within smooth muscle cells, reducing the force and frequency of abnormal contractions.

Trimethylphloroglucinol — a modified derivative that acts both as a phosphodiesterase inhibitor and as a calcium channel blocker at smooth muscle cells. Calcium is the essential trigger for muscle contraction — when calcium flows into the muscle cell, contraction occurs. By reducing calcium influx, Trimethylphloroglucinol directly decreases the contractile stimulus within the muscle cell — complementing and amplifying Phloroglucinol's relaxing effect.

Together, their combined action produces selective smooth muscle relaxation — specifically targeting the abnormally contracting muscle causing the spasm and pain, without significantly affecting cardiac muscle or skeletal muscle. At 80mg of each component per tablet, Spasfon Tablet provides substantially more potent antispasmodic coverage than the 4ml injection formulation — making the tablet appropriate for acute episodes as well as short-term maintenance treatment of recurrent spasms.

Dosage and Administration

⚠️ Always take exactly the dose prescribed by your doctor. Spasfon Tablet is for short-term treatment of spasm episodes. Always follow your doctor's instructions on duration of use.

How to Take:

• Swallow the tablet whole with a full glass of water
• Can be taken with or without food — Spasfon does not cause significant stomach irritation and food does not meaningfully affect its absorption
• For menstrual cramps, taking the first dose at the very onset of cramping — before pain becomes severe — gives significantly better results than waiting
• For IBS, regular dosing as prescribed provides better sustained spasm control than taking only when pain is already severe
• Do not double the dose to compensate for a missed one

Active Ingredients

Who Should NOT Take Spasfon Tablet?

Do not take this tablet if you:

• Are allergic to Phloroglucinol, Trimethylphloroglucinol, or any other ingredient in the formulation
• Are a child below the recommended age — paediatric suitability must be confirmed by a doctor
• Have galactose intolerance, Lapp lactase deficiency, or glucose-galactose malabsorption — if the tablet contains lactose as an excipient

Always consult your doctor before taking Spasfon Tablet if you:

• Have severe liver or kidney disease — may affect metabolism and elimination of the active ingredients
• Are pregnant — Spasfon is used during labour under obstetric supervision; use in early pregnancy requires explicit medical guidance
• Are breastfeeding — consult your doctor before use
• Are taking other medicines — inform your doctor of all current medicines before starting

Side Effects

Spasfon Tablet has an excellent tolerability profile and is one of the best-tolerated antispasmodic medicines available. Serious side effects are rare.

Common Side Effects:

• Mild nausea — uncommon and usually transient
• Mild allergic skin reaction — mild rash or itching in sensitive individuals
• Mild dizziness — infrequent and usually short-lived

Serious Side Effects — Stop Taking and Seek Medical Attention:

• Severe allergic reaction — sudden widespread rash, hives, swelling of the face, lips, tongue or throat, difficulty breathing — emergency treatment required immediately (یہ طبی ہنگامی صورتحال ہے)
• Severe skin reactions — rare cases of significant skin reactions have been reported with phloroglucinol-containing products; stop immediately if widespread skin changes develop

Spasfon Tablet does not cause the sedation, constipation, urinary retention, or dependency associated with anticholinergic antispasmodics — making it particularly well-tolerated for patients who cannot use or have not responded to anticholinergic medicines.

Drug Interactions

Spasfon Tablet has a very low interaction profile compared to most antispasmodic medicines — one of its key clinical advantages.

Spasfon does not interact with anticholinergic medicines through competitive mechanisms, does not affect cytochrome P450 liver enzymes, and does not interact with most commonly prescribed medicines — making it a safe choice for patients on complex medication regimens.

Storage Instructions

• Store below 25°C in a cool, dry place
• Protect from direct sunlight and moisture
• Keep in original blister pack until time of use
• Keep out of reach of children (بچوں کی پہنچ سے دور رکھیں)
• Do not use after the expiry date on the blister pack or outer carton

Frequently Asked Questions

How is Spasfon Tablet different from other antispasmodics like Hyoscine (Buscopan)?

Both Spasfon and Hyoscine (Buscopan) relieve smooth muscle spasm but work through completely different mechanisms. Hyoscine is an anticholinergic antispasmodic — it blocks muscarinic acetylcholine receptors on smooth muscle, preventing nerve signals from triggering contraction. This mechanism is effective but produces characteristic anticholinergic side effects: dry mouth, blurred vision, urinary retention, constipation, and confusion — particularly problematic in elderly patients. Spasfon works directly on smooth muscle cells through phosphodiesterase inhibition and calcium channel blocking — producing equivalent or superior smooth muscle relaxation without any anticholinergic side effects. This makes Spasfon particularly valuable for patients who cannot tolerate anticholinergic medicines or who have conditions where anticholinergic side effects are dangerous.

Can Spasfon Tablet treat the pain of renal colic on its own?

Spasfon Tablet helps significantly by relaxing ureteral smooth muscle spasm — one of the key components of renal colic pain. However, renal colic is a complex pain syndrome involving both smooth muscle spasm and prostaglandin-mediated inflammation and swelling around the obstructed ureter. For most patients with significant renal colic, the best pain management combines Spasfon with an NSAID such as Diclofenac — which targets the inflammatory and prostaglandin component — providing more complete relief than either medicine alone. In severe acute renal colic requiring rapid relief, the injectable forms of both medicines are more appropriate than the oral tablets. Your doctor will prescribe the most appropriate combination based on your pain severity and clinical situation.

Is Spasfon Tablet safe for long-term use in IBS patients?

Spasfon is generally well-tolerated and does not carry the significant organ toxicity risks associated with long-term NSAID use or the dependency and constipation risks of opioid antispasmodics. For IBS patients requiring ongoing spasm management, Spasfon can be used as needed for acute flare-ups or as a short-term regular course during symptomatic periods. However, long-term continuous use without periodic medical review is not recommended — IBS management should involve a broader approach including dietary modification, stress management, and regular gastroenterology review. Your doctor will advise on the most appropriate dosing strategy for your individual IBS pattern.

Is Spasfon Tablet safe during pregnancy?

Spasfon is commonly used during labour under obstetric supervision for managing uterine smooth muscle spasm. For use during earlier stages of pregnancy — such as for IBS-related cramping or renal colic — the decision must be made by your obstetrician based on individual assessment. Phloroglucinol and Trimethylphloroglucinol do not have the prostaglandin-suppressing effects of NSAIDs that make NSAIDs dangerous during pregnancy, and they do not carry the foetal risks of opioid antispasmodics. When treatment is clinically necessary during pregnancy, Spasfon is generally considered one of the safer antispasmodic options — but always under explicit medical guidance and never through self-medication.

Why does Spasfon work better when taken early in a menstrual pain episode?

 Menstrual cramps are caused by prostaglandin-triggered uterine smooth muscle spasm that begins before or at the onset of menstruation. As prostaglandin levels rise and uterine spasm intensifies, pain escalates rapidly — becoming increasingly difficult to control once fully established. Taking Spasfon at the very first sign of cramping — even before pain becomes severe — allows the antispasmodic action to interrupt the spasm cycle before it fully develops, maintaining the uterine muscle in a more relaxed state and preventing the escalation to severe pain. Waiting until pain is already intense means the spasm cycle is already well-established — requiring more medicine and more time to achieve adequate relief.

Can Spasfon Tablet be taken with Paracetamol or Ibuprofen for better pain relief?

Yes — combining Spasfon with conventional analgesics is a well-established and clinically logical practice because they address different components of pain simultaneously. Spasfon relaxes the muscle spasm directly; Paracetamol reduces central pain signal processing; Ibuprofen reduces prostaglandin-driven inflammation and pain sensitisation. For menstrual cramps in particular, combining Spasfon with Ibuprofen provides substantially better relief than either medicine alone — as menstrual pain involves both uterine smooth muscle spasm (Spasfon's target) and prostaglandin-mediated uterine inflammation and sensitisation (Ibuprofen's target). Always inform your doctor or pharmacist about all medicines you are taking simultaneously to confirm the combination is safe for your individual health situation.

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⚕️ Medical Disclaimer: This product description is provided for general informational purposes only and does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified and licensed doctor or pharmacist before starting, stopping, or changing any prescription medicine. If symptoms worsen or do not improve, seek medical advice promptly.

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DRAP Registered | Prescription Required (Rx) | Can be taken with or without food — take at first sign of spasm for best results — consult your doctor for ongoing or recurrent symptoms