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# Meftal Spas
## Overview
Meftal Spas is a combination product containing mefenamic acid (a nonsteroidal anti-inflammatory drug, NSAID) and dicyclomine hydrochloride (an anticholinergic antispasmodic).
## Primary Indications
* Symptomatic relief of mild to moderate pain associated with smooth muscle spasms, particularly in the gastrointestinal and genitourinary tracts.
* Dysmenorrhea.
## Adult Dosing
* **Initial Dose:** 1 tablet orally every 8 hours.
* **Maximum Dose:** Not to exceed 3 tablets in 24 hours.
* Treatment duration is typically short-term.
## Pediatric Dosing
* The safety and efficacy of Meftal Spas in pediatric patients have not been established. Dosing for components may vary, but this combination product is generally not recommended for children.
## Dose Adjustments
* **Renal Impairment:** Mefenamic acid is renally excreted. Use with caution in patients with mild to moderate renal impairment; monitor renal function. Avoid in severe renal impairment.
* **Hepatic Impairment:** Mefenamic acid can cause liver dysfunction. Use with caution in patients with hepatic impairment; monitor liver function. Avoid in severe hepatic impairment.
* **Elderly:** Elderly patients may be more susceptible to adverse effects of NSAIDs and anticholinergics. Use with caution.
## Contraindications
* Hypersensitivity to mefenamic acid, dicyclomine, or any component of the formulation.
* History of asthma, urticaria, or allergic-type reactions after aspirin or other NSAIDs.
* Severe renal impairment.
* Severe hepatic impairment.
* Glaucoma (especially narrow-angle).
* Myasthenia gravis.
* Obstructive uropathy or gastrointestinal obstruction.
* Uncontrolled ulcerative colitis.
* Gastrointestinal bleeding or perforation.
* Congestive heart failure.
## Adverse Effects
* **Common:** Drowsiness, dizziness, blurred vision, dry mouth, constipation, urinary retention, nausea, vomiting, abdominal pain.
* **Less Common/Serious:**
* **Mefenamic Acid:** Gastrointestinal bleeding, ulceration, perforation; renal failure, interstitial nephritis; hepatotoxicity; hypersensitivity reactions (including Stevens-Johnson syndrome, toxic epidermal necrolysis); cardiovascular thrombotic events (MI, stroke).
* **Dicyclomine:** Confusion, hallucinations (especially in elderly), tachycardia, difficulty swallowing.
## Key Drug Interactions
* **ACE inhibitors, Angiotensin II Receptor Blockers (ARBs), Diuretics:** NSAIDs can reduce their antihypertensive effect and increase the risk of renal impairment.
* **Corticosteroids:** Increased risk of gastrointestinal bleeding and ulceration.
* **Anticoagulants (e.g., Warfarin), Antiplatelets (e.g., Aspirin, Clopidogrel):** Increased risk of bleeding.
* **Lithium:** NSAIDs can increase lithium levels.
* **Methotrexate:** NSAIDs can increase methotrexate toxicity.
* **Other NSAIDs/Aspirin:** Increased risk of adverse effects.
* **Anticholinergics:** Additive anticholinergic effects.
* **CNS Depressants:** Additive sedative effects.
## Monitoring
* **Renal Function:** Baseline and periodic monitoring, especially in patients with risk factors.
* **Liver Function:** Baseline and periodic monitoring, especially in patients with risk factors.
* **Gastrointestinal Bleeding:** Monitor for signs and symptoms (e.g., melena, hematemesis).
* **Blood Pressure:** Monitor, especially when co-administered with antihypertensives.
* **Signs of hypersensitivity reactions.**
## Clinical Pearls
* Meftal Spas should be used at the lowest effective dose for the shortest duration necessary to control symptoms.
* Consider prescribing a proton pump inhibitor (PPI) for patients at increased risk of gastrointestinal bleeding.
* Advise patients to avoid alcohol due to increased risk of GI side effects.
* Dicyclomine can cause blurred vision, so advise caution with activities requiring mental alertness.
* Due to the anticholinergic component, use with extreme caution in patients with conditions like prostatic hyperplasia or severe diarrhea.
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**Disclaimer:** This information is intended for healthcare professionals and does not substitute for professional medical advice. Always consult the most current prescribing information and relevant clinical guidelines for comprehensive details before making any treatment decisions.