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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 spasms, particularly in gynecological conditions (e.g., dysmenorrhea) and gastrointestinal disorders.
## Adult Dosing
* **Mefenamic acid:** Typically 250 mg to 500 mg every 6 to 8 hours as needed. Do not exceed 1500 mg in a 24-hour period for initial treatment or 1000 mg/day for prolonged therapy.
* **Dicyclomine hydrochloride:** Typically 20 mg every 6 hours as needed.
* **Meftal Spas:** The specific dosing for the combination product will depend on the formulation. Refer to the product monograph for exact tablet strengths and dosing schedules. If the combination product contains 250 mg mefenamic acid and 20 mg dicyclomine, then one tablet may be taken every 6-8 hours as needed. **Maximum daily dose should not exceed the sum of the maximum individual component doses.**
## Pediatric Dosing
* **Mefenamic acid:** Generally not recommended for children under 14 years of age due to limited data and potential for adverse effects.
* **Dicyclomine hydrochloride:** Dosing varies by age and weight. Consult specific pediatric guidelines.
* **Meftal Spas:** Use in pediatric patients is generally **not established** and should be avoided unless specifically directed by a pediatrician.
## Dose Adjustments
* **Renal Impairment:** Use with caution. Dose reduction may be necessary. Mefenamic acid is renally excreted.
* **Hepatic Impairment:** Use with caution. Mefenamic acid is metabolized in the liver.
* **Elderly:** Use with caution, as they are more susceptible to adverse effects, particularly gastrointestinal bleeding and renal toxicity.
## Contraindications
* Hypersensitivity to mefenamic acid, dicyclomine, or other NSAIDs/anticholinergics.
* History of asthma, urticaria, or allergic-type reactions after taking aspirin or other NSAIDs.
* Inflammatory bowel disease.
* Gastrointestinal obstruction, paralytic ileus.
* Myasthenia gravis.
* Glaucoma (especially narrow-angle glaucoma).
* Severe renal or hepatic impairment.
* Severe cardiovascular disease.
* Children under 6 months of age (for mefenamic acid).
## Adverse Effects
* **Common (Mefenamic acid):** Diarrhea, nausea, vomiting, abdominal pain, dyspepsia, rash.
* **Common (Dicyclomine):** Dry mouth, blurred vision, constipation, urinary retention, dizziness, drowsiness, nervousness.
* **Serious (Mefenamic acid):** Gastrointestinal bleeding, ulceration, perforation; renal toxicity (interstitial nephritis, papillary necrosis, renal failure); cardiovascular thrombotic events; hypersensitivity reactions; hepatotoxicity.
* **Serious (Dicyclomine):** Severe anticholinergic effects (confusion, hallucinations, tachycardia, heat prostration).
## Key Drug Interactions
* **Anticoagulants (e.g., warfarin):** Increased risk of bleeding with mefenamic acid.
* **Corticosteroids:** Increased risk of gastrointestinal ulceration and bleeding.
* **SSRIs/SNRIs:** Increased risk of gastrointestinal bleeding.
* **Other NSAIDs/Aspirin:** Increased risk of gastrointestinal toxicity and potential for decreased efficacy of aspirin.
* **Antihypertensives:** NSAIDs can reduce the efficacy of these drugs.
* **Lithium:** NSAIDs can increase lithium levels.
* **Methotrexate:** NSAIDs can increase methotrexate toxicity.
* **Anticholinergic agents:** Additive anticholinergic effects with dicyclomine.
## Monitoring
* **Gastrointestinal bleeding:** Monitor for signs and symptoms (e.g., melena, hematemesis, abdominal pain).
* **Renal function:** Monitor BUN and creatinine, especially in patients with pre-existing renal disease or those on long-term therapy.
* **Hepatic function:** Monitor liver enzymes if prolonged use is anticipated.
* **Blood pressure:** Monitor for changes, especially in patients with hypertension.
* **Signs of anticholinergic toxicity:** Monitor for dry mouth, blurred vision, urinary retention, constipation, confusion, especially in elderly patients.
## Clinical Pearls
* Meftal Spas should be used for the shortest duration necessary to control symptoms.
* It is generally recommended to take this medication with food or milk to minimize gastrointestinal upset.
* Avoid concurrent use of other NSAIDs, including aspirin, unless directed by a healthcare professional.
* Patients should be advised to report any signs of bleeding, severe abdominal pain, or significant anticholinergic side effects immediately.
* The anticholinergic effects of dicyclomine can mask symptoms of serious conditions like appendicitis.
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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 a qualified healthcare provider for diagnosis and treatment.
