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# Meftal spas
## Overview
Meftal spas is a combination product containing mefenamic acid, a non-steroidal anti-inflammatory drug (NSAID), and dicyclomine hydrochloride, an antimuscarinic agent. Mefenamic acid provides analgesic and anti-inflammatory effects, while dicyclomine is an antispasmodic used to relieve smooth muscle spasms.
## Primary Indications
* Management of mild to moderate pain, particularly when associated with smooth muscle spasms.
* Primary dysmenorrhea.
* Abdominal pain associated with irritable bowel syndrome or other gastrointestinal disorders.
## Adult Dosing
* **Typical Dose:** 1 tablet (mefenamic acid 250 mg, dicyclomine HCl 20 mg) every 8 hours.
* **Maximum Dose:** Not to exceed 3 tablets in 24 hours.
* **Duration:** Typically for short-term use.
## Pediatric Dosing
* Dosing for children is not well-established and generally not recommended due to lack of specific studies and potential risks associated with NSAIDs and antimuscarinics in this population. Consult specialized pediatric resources if considering use.
## Dose Adjustments
* **Renal Impairment:** Use with caution. NSAIDs can affect renal function. Dose reduction may be necessary based on severity of impairment and clinical response.
* **Hepatic Impairment:** Use with caution. Monitor liver function.
* **Elderly:** Increased risk of adverse effects, particularly gastrointestinal bleeding and renal dysfunction. Consider lower doses and close monitoring.
## Contraindications
* Hypersensitivity to mefenamic acid, dicyclomine, or other NSAIDs.
* Active gastrointestinal ulceration or bleeding.
* Inflammatory bowel disease (severe).
* Obstructive uropathy.
* Obstructive gastrointestinal disease.
* Myasthenia gravis.
* Glaucoma (narrow-angle).
* Infants less than 6 months of age.
* Third trimester of pregnancy.
## Adverse Effects
* **Common:** Nausea, vomiting, diarrhea, abdominal pain, dizziness, dry mouth, blurred vision, constipation.
* **Serious:** Gastrointestinal bleeding, ulceration, perforation; renal failure; hepatic impairment; cardiovascular thrombotic events; Stevens-Johnson syndrome; anaphylaxis.
## Key Drug Interactions
* **Anticoagulants (e.g., warfarin):** Increased risk of bleeding.
* **Corticosteroids:** Increased risk of gastrointestinal ulceration and bleeding.
* **Other NSAIDs/Aspirin:** Increased risk of gastrointestinal toxicity.
* **Diuretics/ACE inhibitors/ARBs:** May decrease antihypertensive effect and increase risk of renal impairment.
* **Lithium:** NSAIDs can increase lithium levels.
* **Antimuscarinics:** Additive anticholinergic effects.
* **CNS Depressants:** Dicyclomine can potentiate effects.
## Monitoring
* **Renal function:** Baseline and periodically, especially in those with pre-existing renal disease or risk factors.
* **Hepatic function:** Baseline and periodically.
* **Signs of GI bleeding:** Stool occult blood, melena, hematemesis.
* **Blood pressure:** Especially in patients with hypertension.
## Clinical Pearls
* Meftal spas should be taken with food or milk to minimize gastrointestinal upset.
* Due to the anticholinergic effects of dicyclomine, patients should be advised about potential side effects like dry mouth, blurred vision, and constipation, and cautioned about activities requiring mental alertness.
* Avoid concomitant use with other NSAIDs.
* Discontinue if signs of serious adverse reactions occur.
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*This information is intended for healthcare professionals. Always consult the most current prescribing information and relevant clinical guidelines before making treatment decisions. Dosing and indications may vary based on patient-specific factors and local protocols.*
