Different between hyocimax vs hyocmax s
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Hyocimax vs Hyocimax S composition difference hyoscine butylbromide
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Here is a clear comparison of Hyocimax vs Hyocimax S:
Hyocimax vs Hyocimax S - Key Differences
| Feature | Hyocimax | Hyocimax S |
|---|---|---|
| Active ingredient(s) | Hyoscine Butylbromide 10 mg | Hyoscyamine (Hyoscine Sulfate) 0.125 mg |
| Drug class | Anticholinergic / Antispasmodic | Anticholinergic / Antispasmodic |
| Manufacturer | Acme Pharmaceuticals | Zydus Cadila |
| Primary use | GI and GU smooth muscle spasms | GI and bladder spasms |
| Mechanism | Blocks muscarinic receptors on smooth muscle of GI/GU tract | Blocks muscarinic receptors; similar mechanism but different salt/isomer |
The Key Pharmacological Distinction
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Hyocimax contains hyoscine butylbromide (scopolamine butylbromide) - a quaternary ammonium compound. Because of its molecular structure, it does NOT cross the blood-brain barrier, so it has minimal CNS effects and works mainly peripherally on the gut and bladder.
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Hyocimax S contains hyoscyamine sulfate (0.125 mg) - the levo-isomer of atropine. Hyoscyamine is a tertiary amine that can cross the blood-brain barrier to a greater degree. It is more potent on a per-mg basis and has slightly more CNS penetration than hyoscine butylbromide.
Common Indications (Both)
- Irritable bowel syndrome (IBS)
- Abdominal/intestinal colic
- Peptic ulcer (adjunctive)
- Renal and biliary colic
- Bladder spasms
- Dysmenorrhoea (menstrual cramps)
Common Side Effects (Both - anticholinergic class)
- Dry mouth
- Blurred vision / dry eyes
- Constipation
- Urinary retention
- Tachycardia
- Reduced sweating
Shared Contraindications
- Myasthenia gravis
- Narrow-angle glaucoma
- Prostatic hypertrophy with urinary retention
- Paralytic ileus
In short: The "S" in Hyocimax S stands for the sulfate salt of hyoscyamine (0.125 mg), a different but related anticholinergic compound, whereas plain Hyocimax contains hyoscine butylbromide (10 mg) - the quaternary ammonium derivative that is more strictly peripheral in action. Both are antispasmodics used for cramping and visceral pain, but they differ in their chemical salt/form, dose, degree of CNS penetration, and manufacturer.
Note: Some markets also have a "Hyocimax Plus" formulation that combines hyoscine butylbromide with paracetamol (acetaminophen) for added analgesia - this is distinct from Hyocimax S.
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