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# Meftal spas
## Overview
Meftal spas is a combination product containing mefenamic acid and dicyclomine. Mefenamic acid is a non-steroidal anti-inflammatory drug (NSAID) that inhibits prostaglandin synthesis. Dicyclomine is an anticholinergic antispasmodic agent.
## Primary Indications
* Short-term treatment of mild to moderate pain associated with menstrual cramps (dysmenorrhea).
## Adult Dosing
* **Mefenamic Acid:** 500 mg every 6 hours as needed. Maximum daily dose: 1500 mg.
* **Dicyclomine:** 20 mg every 6 hours as needed. Maximum daily dose: 80 mg.
*Note: Specific dosing regimens may vary based on local protocol and patient response.*
## Pediatric Dosing
* This combination product is not typically recommended for pediatric patients due to limited safety and efficacy data. Dosing for individual components in children is complex and should be determined by a qualified healthcare provider.
## Dose Adjustments
* **Renal Impairment:** Use with caution. Mefenamic acid is renally excreted. Consult prescribing information for specific guidance.
* **Hepatic Impairment:** Use with caution. Mefenamic acid can affect liver function.
* **Elderly:** Increased risk of adverse effects, particularly gastrointestinal bleeding, renal, and cardiovascular events. Use with caution and at the lowest effective dose.
## Contraindications
* Known hypersensitivity to mefenamic acid, dicyclomine, aspirin, or other NSAIDs.
* Active gastrointestinal ulceration or bleeding.
* Inflammatory bowel disease.
* Severe renal or hepatic impairment.
* Myasthenia gravis.
* Glaucoma.
* Obstructive uropathy or gastrointestinal obstruction.
* Uncontrolled heart failure.
* Concurrent use with other NSAIDs, including aspirin.
* Pregnancy (especially in the third trimester).
* Breastfeeding.
## Adverse Effects
* **Common:** Nausea, vomiting, abdominal pain, diarrhea, constipation, dizziness, drowsiness, dry mouth.
* **Serious:** Gastrointestinal bleeding, ulceration, perforation; cardiovascular thrombotic events (MI, stroke); renal failure; hepatic failure; hypersensitivity reactions (including anaphylaxis); blurred vision; urinary retention; exacerbation of glaucoma.
## Key Drug Interactions
* **Other NSAIDs (including aspirin):** Increased risk of gastrointestinal adverse effects and renal toxicity.
* **Anticoagulants (e.g., warfarin):** Increased risk of bleeding.
* **Corticosteroids:** Increased risk of gastrointestinal ulceration and bleeding.
* **SSRIs/SNRIs:** Increased risk of gastrointestinal bleeding.
* **Diuretics, ACE inhibitors, ARBs:** Reduced antihypertensive effect and increased risk of renal impairment.
* **Anticholinergic agents:** Additive anticholinergic effects.
* **Digoxin:** May increase digoxin levels.
## Monitoring
* **Renal function:** Monitor periodically, especially in patients with pre-existing renal disease or those on long-term therapy.
* **Hepatic function:** Monitor periodically, especially in patients with pre-existing hepatic disease.
* **Gastrointestinal symptoms:** Educate patients on signs of bleeding (e.g., black stools, hematemesis) and to report them immediately.
* **Blood pressure:** Monitor for potential increases, especially with NSAID use.
* **Signs of anticholinergic toxicity:** Blurred vision, dry mouth, urinary retention, constipation.
## Clinical Pearls
* Meftal spas should be used for the shortest duration necessary to control symptoms.
* Take with food or milk to minimize gastrointestinal upset.
* Avoid concurrent use of alcohol, which can increase the risk of gastrointestinal bleeding.
* Patients with asthma, cardiovascular disease, or hypertension should use NSAIDs with caution.
* Dicyclomine's anticholinergic effects can cause significant side effects, particularly in the elderly.
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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 guidelines before making any treatment decisions. Drug information can change, and it is essential to verify dosages, contraindications, and safety information with official sources.
