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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 mild to moderate pain associated with smooth muscle spasm, particularly in the gastrointestinal tract.
* Painful menstruation (dysmenorrhea).
## Adult Dosing
* **Mefenamic Acid Component:** Typically 250 mg to 500 mg orally every 8 hours as needed.
* **Dicyclomine Hydrochloride Component:** Typically 20 mg orally every 8 hours as needed.
* *Note:* The combination product usually provides these doses in a single tablet or capsule. The maximum duration of use for symptomatic relief is generally limited. Consult specific product labeling or local protocol for exact dosing and duration.
## Pediatric Dosing
* Dosing in pediatric patients is not well-established and generally not recommended due to risks associated with NSAIDs and anticholinergics in this population. Consult a pediatrician for alternative management strategies.
## Dose Adjustments
* **Renal Impairment:** Use with caution. Mefenamic acid is renally excreted. Dose reduction or avoidance may be necessary in severe renal impairment.
* **Hepatic Impairment:** Use with caution. Mefenamic acid is metabolized in the liver. Dose reduction or avoidance may be necessary in severe hepatic impairment.
* **Elderly:** Increased risk of adverse effects, particularly gastrointestinal bleeding and renal toxicity. Consider lower doses and closer monitoring.
## Contraindications
* Hypersensitivity to mefenamic acid, dicyclomine, or other NSAIDs/anticholinergics.
* History of asthma, urticaria, or allergic-type reactions after aspirin or other NSAIDs.
* Inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis).
* Gastrointestinal obstruction or perforation.
* Myasthenia gravis.
* Glaucoma (especially narrow-angle).
* Infants < 6 months of age (due to dicyclomine).
* Severe renal or hepatic impairment.
* Third trimester of pregnancy.
## Adverse Effects
* **Common:** Nausea, vomiting, abdominal pain, diarrhea, constipation, dizziness, drowsiness, dry mouth.
* **Serious:**
* **Gastrointestinal:** Ulceration, bleeding, perforation.
* **Cardiovascular:** Increased risk of thrombotic events (e.g., myocardial infarction, stroke) with NSAID use.
* **Renal:** Renal papillary necrosis, interstitial nephritis, renal failure.
* **Hepatic:** Hepatotoxicity, elevated liver enzymes.
* **Anticholinergic:** Blurred vision, urinary retention, tachycardia, confusion (especially in the elderly).
* **Hematologic:** Anemia.
* **Hypersensitivity:** Severe skin reactions (e.g., Stevens-Johnson syndrome, toxic epidermal necrolysis).
## 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 adverse effects.
* **ACE Inhibitors/ARBs/Diuretics:** May reduce antihypertensive effects and increase risk of renal impairment.
* **Lithium:** Increased lithium levels.
* **Methotrexate:** Increased methotrexate toxicity.
* **Anticholinergics:** Additive anticholinergic effects.
* **CNS Depressants:** Additive sedative effects.
## Monitoring
* **Renal function:** Baseline and periodic monitoring, especially in patients with risk factors.
* **Liver function:** Baseline and periodic monitoring.
* **Gastrointestinal symptoms:** Monitor for signs of bleeding or ulceration.
* **Blood pressure:** Especially in patients on antihypertensives.
* **Signs of anticholinergic toxicity:** Particularly in the elderly.
## Clinical Pearls
* Use the lowest effective dose for the shortest duration necessary.
* Meftal Spas should be taken with food or milk to minimize gastrointestinal upset.
* Avoid concomitant use with other NSAIDs, aspirin, or alcohol.
* Patients should be advised of the potential for drowsiness and impaired ability to operate machinery or drive.
* Discontinue immediately if signs of gastrointestinal bleeding (e.g., black, tarry stools, coffee-ground emesis) or severe allergic reaction occur.
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*Disclaimer: This information is intended for healthcare professionals. Always consult the most current prescribing information and relevant clinical guidelines before making treatment decisions. Local protocols and individual patient factors may necessitate deviations from these recommendations.*
