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# Meftal spas
## Overview
Meftal spas is a combination medication containing mefenamic acid and dicyclomine hydrochloride. Mefenamic acid is a nonsteroidal anti-inflammatory drug (NSAID) used for pain relief and to reduce inflammation. Dicyclomine is an anticholinergic and antispasmodic agent used to relieve smooth muscle spasms, particularly in the gastrointestinal tract.
## Primary Indications
* Relief of pain associated with smooth muscle spasms, such as in dysmenorrhea or irritable bowel syndrome.
## Adult Dosing
* **Meftal spas:** Typically 1 capsule (containing mefenamic acid 250 mg and dicyclomine hydrochloride 10 mg) every 8 hours as needed for pain and spasms.
* **Maximum:** Not explicitly defined for the combination product, but individual component maximums should be considered (e.g., mefenamic acid typically 500 mg TID, dicyclomine typically 20 mg QID).
## Pediatric Dosing
* Information regarding the use of Meftal spas in pediatric patients is not readily available. Dosing of individual components may vary; consult specific pediatric guidelines. Mefenamic acid is generally not recommended for children under 14 years of age without specific indication and supervision. Dicyclomine is used with caution in infants and children due to potential side effects.
## Dose Adjustments
* **Renal Impairment:** Use with caution. Mefenamic acid is primarily eliminated by the kidneys; dose reduction may be necessary in severe impairment.
* **Hepatic Impairment:** Use with caution. Mefenamic acid is metabolized by the liver; dose reduction may be necessary.
* **Elderly:** Use with caution due to increased risk of adverse effects from NSAIDs (e.g., gastrointestinal bleeding, renal toxicity).
## Contraindications
* Hypersensitivity to mefenamic acid, dicyclomine, or other NSAIDs.
* Patients with active gastrointestinal bleeding or a history of recurrent peptic ulceration.
* Severe renal or hepatic impairment.
* Severe ulcerative colitis or toxic megacolon.
* Glaucoma.
* Myasthenia gravis.
* Obstructive uropathy or gastrointestinal obstruction.
* Unstable heart failure.
* Use in the third trimester of pregnancy.
## Adverse Effects
* **Mefenamic Acid:** Gastrointestinal upset (nausea, vomiting, diarrhea, abdominal pain), heartburn, dyspepsia, dizziness, headache, drowsiness, rash, increased risk of serious cardiovascular thrombotic events, myocardial infarction, and stroke; renal toxicity, hepatic dysfunction.
* **Dicyclomine:** Dry mouth, blurred vision, constipation, urinary retention, drowsiness, dizziness, confusion, nausea.
## Key Drug Interactions
* **Anticoagulants (e.g., warfarin):** Increased risk of bleeding.
* **Other NSAIDs and Aspirin:** Increased risk of gastrointestinal adverse effects.
* **Corticosteroids:** Increased risk of gastrointestinal bleeding.
* **Diuretics and Antihypertensives:** Mefenamic acid can reduce their efficacy and increase risk of renal toxicity.
* **Lithium:** Mefenamic acid can increase lithium levels.
* **Methotrexate:** Mefenamic acid can increase methotrexate toxicity.
* **Dicyclomine Interactions:** May potentiate the effects of other anticholinergic agents. May impair the absorption of drugs that require gastric acid for absorption (e.g., digoxin).
## Monitoring
* Monitor for signs of gastrointestinal bleeding (e.g., melena, hematemesis).
* Monitor renal and hepatic function, especially with long-term use or in patients with pre-existing impairment.
* Monitor for signs of cardiovascular events.
* Monitor for anticholinergic side effects (dry mouth, blurred vision, urinary retention, constipation).
## Clinical Pearls
* Meftal spas should be taken with food or milk to minimize gastrointestinal upset.
* Due to the anticholinergic component, patients should be advised to avoid activities requiring mental alertness until they know how this medication affects them.
* The duration of use should be the shortest possible to control symptoms.
* Consider NSAID gastroprotection (e.g., misoprostol or a proton pump inhibitor) for patients at high risk of gastrointestinal complications.
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**Disclaimer:** This information is intended for healthcare professionals and is not a substitute for professional medical advice. Always consult the most current prescribing information and relevant literature for complete details and to verify any information before making clinical decisions.
