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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
* Gastrointestinal spasms
* Dysmenorrhea
* Headache
* Dental pain
* Musculoskeletal pain
## Adult Dosing
* **Mefenamic Acid:** Typically 500 mg every 8 hours as needed for pain. Maximum dose is 1500 mg per day.
* **Dicyclomine Hydrochloride:** Typically 20 mg every 8 hours as needed for spasms. Maximum dose is 40 mg per day.
*Note: Specific dosing regimens may vary based on local protocols and individual patient response.*
## Pediatric Dosing
Mefenamic acid is **not recommended** for use in children under 14 years of age due to potential for adverse effects. Dicyclomine hydrochloride dosing in pediatrics can be complex and requires careful consideration of age and weight, and is often guided by specific institutional protocols. Consultation with a pediatrician or pediatric pharmacist is advised for pediatric use.
## Dose Adjustments
* **Renal Impairment:** Use with caution. Mefenamic acid is renally excreted and accumulation may occur. Dosage reduction may be necessary.
* **Hepatic Impairment:** Use with caution. NSAIDs can exacerbate hepatic dysfunction.
* **Elderly:** Increased risk of adverse effects, particularly gastrointestinal bleeding, renal impairment, and cardiovascular events. Lower doses may be appropriate.
## Contraindications
* Hypersensitivity to mefenamic acid, dicyclomine, or other NSAIDs.
* Active gastrointestinal bleeding or history of recurrent gastrointestinal ulceration.
* Severe renal or hepatic impairment.
* Myasthenia gravis.
* Glaucoma.
* Obstructive uropathy or gastrointestinal obstruction.
* Severe ulcerative colitis or toxic megacolon.
* Infants less than 6 months of age (due to potential for respiratory depression with dicyclomine).
## Adverse Effects
* **Common (Mefenamic Acid):** Gastrointestinal upset (nausea, vomiting, diarrhea, abdominal pain), dizziness, drowsiness, headache.
* **Common (Dicyclomine):** Dry mouth, blurred vision, urinary retention, constipation, drowsiness, confusion.
* **Serious (Mefenamic Acid):** Gastrointestinal bleeding, perforation, ulceration; renal failure; hepatotoxicity; cardiovascular thrombotic events; hypersensitivity reactions; Stevens-Johnson syndrome.
* **Serious (Dicyclomine):** Cardiovascular effects (tachycardia), heat prostration.
## Key Drug Interactions
* **Other NSAIDs (including aspirin):** Increased risk of gastrointestinal toxicity.
* **Anticoagulants (e.g., warfarin):** Increased risk of bleeding.
* **Corticosteroids:** Increased risk of gastrointestinal bleeding.
* **Diuretics and antihypertensives:** May reduce efficacy and increase risk of renal toxicity.
* **Lithium:** May increase lithium levels.
* **Anticholinergic agents:** Additive anticholinergic effects.
* **Opioid analgesics:** Additive drowsiness and dizziness.
* **Proton pump inhibitors (PPIs) and H2 antagonists:** May reduce the risk of NSAID-induced gastrointestinal events.
## Monitoring
* **Renal function:** Baseline and periodic monitoring, especially in patients with risk factors.
* **Hepatic function:** Baseline and periodic monitoring, especially in patients with pre-existing liver disease.
* **Gastrointestinal symptoms:** Monitor for signs of bleeding or ulceration (e.g., black tarry stools, hematemesis).
* **Blood pressure:** Monitor for potential increases.
* **Signs of anticholinergic 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 effects of dicyclomine, patients should be cautioned about activities requiring mental alertness (e.g., driving, operating machinery) and the risk of heat prostration in hot weather.
* The duration of use should be as short as clinically necessary.
* This combination product may not be optimal if only one component is needed. Consider separate agents if indicated.
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**Disclaimer:** This information is intended for clinical professionals and is not a substitute for detailed prescribing information. Always consult the most current drug information available from the manufacturer or a reliable drug information database before making any treatment decisions.
