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# Meftal Spas
## Overview
Meftal Spas is a combination product containing mefenamic acid, a nonsteroidal anti-inflammatory drug (NSAID), and dicyclomine, an anticholinergic antispasmodic.
## Primary Indications
* Pain and spasms associated with dysmenorrhea.
* Gastrointestinal colic.
## Adult Dosing
* **Meftal Spas Tablet:** Typically 1 tablet (containing mefenamic acid 250 mg and dicyclomine hydrochloride 20 mg) every 8 hours as needed.
* **Maximum Dose:** Not explicitly defined in standard references for the combination product, but individual components have limits (e.g., mefenamic acid typically 500 mg every 6 hours, dicyclomine typically 20 mg every 4-6 hours). Prescribe cautiously and monitor for toxicity.
## Pediatric Dosing
Dosing for Meftal Spas in pediatric patients is not well-established. Mefenamic acid dosing in children is typically weight-based (e.g., 5-7 mg/kg/dose every 6-8 hours), but the use of dicyclomine in children should be approached with extreme caution due to potential anticholinergic side effects. Consult specialized pediatric resources.
## Dose Adjustments
* **Renal Impairment:** Mefenamic acid should be used with caution. Dicyclomine is renally excreted; use cautiously in severe renal impairment.
* **Hepatic Impairment:** Mefenamic acid should be used with caution.
## Contraindications
* Known hypersensitivity to mefenamic acid, dicyclomine, or other NSAIDs.
* History of asthma, urticaria, or allergic-type reactions after aspirin or other NSAIDs.
* Severe renal or hepatic impairment.
* Intestinal obstruction, paralytic ileus, severe ulcerative colitis, toxic megacolon, pyloric stenosis, glaucoma, myasthenia gravis, uncontrolled heart failure, tachycardia.
* Use in the third trimester of pregnancy.
## Adverse Effects
* **Common (Mefenamic Acid):** Diarrhea, nausea, vomiting, abdominal pain, dyspepsia, headache, dizziness.
* **Common (Dicyclomine):** Dry mouth, blurred vision, urinary retention, constipation, drowsiness, confusion, tachycardia.
* **Serious:** Gastrointestinal bleeding, ulceration, perforation; renal and hepatic toxicity; cardiovascular thrombotic events; hypersensitivity reactions.
## Key Drug Interactions
* **NSAIDs:** Increased risk of bleeding and renal toxicity when used with other NSAIDs, aspirin, or corticosteroids.
* **Anticoagulants (e.g., Warfarin):** Increased risk of bleeding.
* **ACE Inhibitors/ARBs/Diuretics:** May reduce antihypertensive effect and increase risk of renal impairment.
* **Lithium:** Mefenamic acid can increase lithium levels.
* **Other Anticholinergics:** Additive anticholinergic effects.
* **MAO Inhibitors:** Dicyclomine may prolong or intensify anticholinergic effects.
## Monitoring
* Signs and symptoms of gastrointestinal bleeding (e.g., melena, hematemesis).
* Renal function (BUN, creatinine) especially in patients with pre-existing renal disease or those taking diuretics.
* Liver function tests (LFTs) periodically.
* Signs of urinary retention.
* Fluid intake and output.
## Clinical Pearls
* Meftal Spas should be taken with food or milk to minimize gastrointestinal upset.
* Dicyclomine's anticholinergic effects can be exacerbated by heat; advise patients to avoid high temperatures.
* Due to the risk of drowsiness and dizziness, caution patients about operating machinery or driving.
* Long-term use of mefenamic acid is not recommended due to potential for serious adverse effects.
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*Disclaimer: This information is intended for healthcare professionals. Always consult the most current prescribing information and institutional guidelines before making clinical decisions. Dosing and recommendations may vary based on patient-specific factors and local protocols.*
