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# Meftal Spas
## Overview
Meftal Spas is a combination medication containing mefenamic acid, a nonsteroidal anti-inflammatory drug (NSAID), and dicyclomine hydrochloride, an anticholinergic antispasmodic.
## Primary Indications
* Pain and spasms associated with irritable bowel syndrome (IBS).
* Other gastrointestinal spasms and associated pain.
## Adult Dosing
* **Standard Dose:** 1 tablet orally every 8 hours as needed for symptoms.
* **Maximum Dose:** Not explicitly defined for this combination product, but individual component maximums should be considered (e.g., mefenamic acid typically limited to 7 days of use for pain, dicyclomine typically 20 mg every 6 hours).
## Pediatric Dosing
* **Children:** The safety and efficacy of Meftal Spas in pediatric patients have not been established. Use is not recommended.
## Dose Adjustments
* **Renal Impairment:** Mefenamic acid is renally excreted. Use with caution; dose reduction may be necessary based on severity.
* **Hepatic Impairment:** Mefenamic acid is metabolized by the liver. Use with caution; dose reduction may be necessary.
* **Elderly:** Increased risk of adverse effects, particularly gastrointestinal bleeding and renal toxicity with mefenamic acid. Use with caution and consider lower doses.
## Contraindications
* Known hypersensitivity to mefenamic acid, dicyclomine, or other NSAIDs/anticholinergics.
* Active gastrointestinal ulceration or bleeding.
* Severe renal or hepatic impairment.
* Severe ulcerative colitis or toxic megacolon.
* Glaucoma (angle-closure).
* Myasthenia gravis.
* Uncontrolled hypertension.
* Heart failure.
* Children < 12 years of age.
## Adverse Effects
* **Common:** Nausea, vomiting, diarrhea, constipation, abdominal pain, dizziness, dry mouth, blurred vision, urinary retention, drowsiness.
* **Serious:** Gastrointestinal bleeding, perforation, renal failure, hepatic dysfunction, Stevens-Johnson syndrome, anaphylaxis, cardiovascular thrombotic events (with NSAIDs). Anticholinergic effects can be exacerbated in the elderly (confusion, delirium).
## Key Drug Interactions
* **NSAIDs:** Increased risk of GI bleeding when used with other NSAIDs, corticosteroids, SSRIs, or anticoagulants.
* **Anticholinergics:** Additive anticholinergic effects with other medications (e.g., tricyclic antidepressants, antihistamines, amantadine).
* **CYP2C9 Inhibitors/Inducers:** May affect mefenamic acid metabolism.
* **Diuretics, ACE Inhibitors, ARBs:** Reduced efficacy and increased risk of renal impairment with mefenamic acid.
## Monitoring
* **GI Bleeding:** Monitor for signs and symptoms (e.g., melena, hematemesis, abdominal pain).
* **Renal Function:** Baseline and periodic monitoring, especially in patients with pre-existing renal disease or those at risk.
* **Hepatic Function:** Baseline and periodic monitoring, especially in patients with pre-existing hepatic disease.
* **Blood Pressure:** Monitor, especially with chronic NSAID use.
* **Signs of Anticholinergic Overload:** Confusion, blurred vision, urinary retention, constipation, especially in the elderly.
## Clinical Pearls
* Meftal Spas should be used for the shortest duration necessary to control symptoms.
* The mefenamic acid component has a short duration of action and is generally recommended for short-term use (e.g., up to 7 days).
* Anticholinergic effects are more pronounced in the elderly; use with caution and monitor closely.
* Advise patients to avoid alcohol due to increased risk of GI irritation and bleeding.
* Consider alternative agents if GI symptoms or anticholinergic side effects are significant.
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*This information is intended for healthcare professionals. Please consult the most current prescribing information and local protocols for definitive guidance.*
