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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 abdominal pain and cramps associated with irritable bowel syndrome (IBS).
* Management of spasmodic conditions of the gastrointestinal tract.
## Adult Dosing
* **Oral:** Typically 1 capsule (containing mefenamic acid 250 mg and dicyclomine HCl 20 mg) every 8 hours as needed for symptoms.
* **Maximum:** Do not exceed 4 capsules in a 24-hour period.
## Pediatric Dosing
Dosing has not been established in pediatric populations. Use in children is generally not recommended due to potential risks associated with both components.
## Dose Adjustments
* **Renal Impairment:** Use with caution. Mefenamic acid is primarily eliminated by the kidneys; dose reduction may be necessary in severe impairment, though specific guidelines are lacking.
* **Hepatic Impairment:** Use with caution. Mefenamic acid is metabolized by the liver.
* **Elderly:** Use with caution, particularly concerning NSAID-related gastrointestinal and renal risks.
## Contraindications
* Hypersensitivity to mefenamic acid, dicyclomine, or any component of the formulation.
* Patients with a history of asthma, urticaria, or allergic-type reactions after taking aspirin or other NSAIDs.
* Inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis).
* Obstructive uropathy or gastrointestinal obstruction.
* Myasthenia gravis.
* Glaucoma.
* Severe renal or hepatic impairment.
* Third trimester of pregnancy.
## Adverse Effects
* **Common (Mefenamic Acid):** Gastrointestinal upset (nausea, vomiting, diarrhea, constipation, abdominal pain), headache, dizziness, rash.
* **Common (Dicyclomine):** Dry mouth, blurred vision, urinary retention, constipation, drowsiness, dizziness.
* **Serious:** Gastrointestinal bleeding, ulceration, perforation; renal toxicity; cardiovascular thrombotic events (NSAID class effect); severe allergic reactions.
## Key Drug Interactions
* **NSAIDs:** Increased risk of gastrointestinal toxicity.
* **Anticoagulants (e.g., warfarin):** Increased risk of bleeding.
* **Corticosteroids:** Increased risk of gastrointestinal ulceration and bleeding.
* **Diuretics and Antihypertensives:** NSAIDs may reduce their efficacy and increase the risk of renal impairment.
* **Lithium:** NSAIDs can increase lithium levels.
* **Methotrexate:** NSAIDs can increase methotrexate toxicity.
* **Anticholinergics:** Additive anticholinergic effects when combined with dicyclomine.
## Monitoring
* **Renal function:** Baseline and periodic monitoring, especially in patients with risk factors.
* **Hepatic function:** Baseline and periodic monitoring.
* **Gastrointestinal symptoms:** Monitor for signs of bleeding or ulceration.
* **Blood pressure:** Especially in patients on antihypertensives.
## Clinical Pearls
* This combination is intended for symptomatic relief of abdominal spasms and associated pain.
* Mefenamic acid should be used at the lowest effective dose for the shortest duration necessary.
* Due to anticholinergic effects, caution is advised in elderly patients and those with conditions like benign prostatic hyperplasia or cardiac arrhythmias.
* Advise patients to report any signs of gastrointestinal bleeding (black, tarry stools; persistent stomach pain) or other serious adverse effects immediately.
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*Disclaimer: This information is intended for healthcare professionals. Always consult the most current prescribing information and relevant guidelines before making clinical decisions.*
