์ธ๋ฒจ๋ผ๋จธ
์ธ๋ฒจ๋ผ๋จธ(Sevelamer)๋ ์นผ์๊ณผ ์๋ฃจ๋ฏธ๋์ด ์๋ **์ธ ๊ฒฐํฉ์ **๋ก, ์ฃผ๋ก **๋ง์ฑ ์ ์ฅ ์งํ(CKD)**๊ณผ ๊ด๋ จ๋ ๊ณ ์ธ์ฐํ์ฆ ๊ด๋ฆฌ์ ์ฌ์ฉ๋ฉ๋๋ค. * **์์์ ์ฅ์ **: ๊ธฐ์กด์ ์ธ ๊ฒฐํฉ์ (์์ฐํ์๋ฃจ๋ฏธ๋ ๋๋ ํ์ฐ์นผ์ ๋ฑ)์ ๋ฌ๋ฆฌ ์๋ฃจ๋ฏธ๋ ๋ ์ฑ์ด๋ ์์ธ์ฑ ๊ณ ์นผ์ํ์ฆ์ ์ํ์ด ์์ต๋๋ค. * ์๋ฃจ๋ฏธ๋ ์ผ์ ๋ด์ฑ์ด ์๊ฑฐ๋ ์นผ์ ๊ธฐ๋ฐ ๊ฒฐํฉ์ ๊ฐ ์ ์ด์ฑ ์กฐ์ง ์ํํ๋ฅผ ์ ํ์ํฌ ์ ์๋ ๋ง๊ธฐ CKD ํ์์๊ฒ ํนํ ์ ์ฉํฉ๋๋ค. * **์ฐธ๊ณ **: ๊ธฐ์กด์ ์๋ฃจ๋ฏธ๋์ด๋ ์นผ์ ๊ธฐ๋ฐ ์ ํ์ ๋นํด ์ผ๋ฐ์ ์ผ๋ก ๊ฐ๊ฒฉ์ด ๋น์๋๋ค.
์์ฉ ๊ธฐ์ : Sevelamer is a cross-linked polymeric amine that acts locally in the gastrointestinal tract. * **Mechanism**: The polymer contains multiple amine groups that become partially protonated in the acidic environment of the stomach and intestine. These protonated amines interact with dietary phosphate ions via **ionic and hydrogen bonding** โ preventing phosphate absorption across the gut wall โ increasing fecal excretion of phosphate โ ultimately lowering serum phosphorus levels. * **Secondary Effects**: It also binds bile acids in the gut, which can lead to a reduction in serum low-density lipoproteins (LDL) and total cholesterol.
๋๋ฌผ ์ข ๋ณ ์ฉ๋
- Hyperphosphatemia ยท 200 mg 2-3 times daily ยท PO ยท q8-12h ยท Anecdotally appears to be safe and effective.
- Chronic kidney disease (hyperphosphataemia) ยท 30-40 mg/kg ยท PO ยท q8h ยท Titrated to the desired serum phosphate concentration ยท Should be given with meals and at least 1 hour before or 3 hours after other medications.
- Hyperphosphatemia ยท 400 mg PO with meals ยท PO ยท with meals ยท For medium to large sized dog
- Chronic kidney disease (hyperphosphataemia) ยท 30-40 mg/kg ยท PO ยท q8h ยท Titrated to the desired serum phosphate concentration ยท Should be given with meals and at least 1 hour before or 3 hours after other medications.
์ฉ๋์ ๋ฉดํ ์์ ์ ๋ฌธ๊ฐ๋ฅผ ์ํ ์์ ์ฐธ๊ณ ์๋ฃ์ ๋๋ค. ํญ์ ์ต์ ๋ผ๋ฒจ๊ณผ ๊ฐ๋ณ ํ์์ ๋ํด ํ์ธํ์ญ์์ค.
ํฌ์ฌ ๊ฒฝ๋ก
๊ธ๊ธฐ
- Hypophosphatemia
- Bowel obstruction
- Known hypersensitivity to sevelamer
- Gastrointestinal obstruction
์ด์๋ฐ์
- Gastrointestinal upset (nausea, vomiting, diarrhea, or constipation)
- Decreased absorption of fat-soluble vitamins (A, D, E, K) and folic acid
- Constipation
- Pills are hygroscopic and will expand (potential risk of esophageal obstruction if not swallowed quickly)
์ฝ๋ฌผ ์ํธ์์ฉ
- Anticonvulsants (oral) ยท Sevelamer may reduce oral absorption; give at least 1 hour before or 3 hours after sevelamer.
- Antiarrhythmics (oral) ยท Sevelamer may reduce oral absorption; give at least 1 hour before or 3 hours after sevelamer.
- Ciprofloxacin (and other oral fluoroquinolones) ยท Concurrent administration may decrease absorption by 50%; administer at least 1 hour before or 3 hours after sevelamer.
- Oral Medications (Narrow Therapeutic Index) ยท May reduce absorption; consider dosing other oral drugs separately.
- Vitamins ยท Sevelamer may reduce vitamin absorption from food; consider administering vitamin supplements separately.
- Other oral medications ยท May bind to and decrease the absorption of concurrently administered oral drugs. Should be given at least 1 hour before or 3 hours after other medications. ยท moderate
- Fat-soluble vitamins (e.g., Vitamin K) ยท May inhibit vitamin absorption; consider monitoring prothrombin time. ยท moderate
๋ชจ๋ํฐ๋ง
- Serum phosphorus
- Serum calcium
- Serum bicarbonate
- Serum chloride
- Baseline coagulation screening test (before and after therapy implementation, due to potential Vitamin K malabsorption)
- Serum phosphate levels (at 4-6 week intervals to adjust dosage)
- Prothrombin time (due to potential vitamin K malabsorption)
- Bowel movements (monitor for constipation)
๊ณผ์ฉ๋
Because sevelamer is not absorbed systemically, the potential for acute toxicity from an overdose appears to be **negligible**. Overdose would likely result in gastrointestinal distress (constipation or diarrhea) and potential hypophosphatemia.
VetSheet ์ฝ๋ฌผ ๋ ํผ๋ฐ์ค๋ ๋ฉดํ ์์ ์ ๋ฌธ๊ฐ๋ฅผ ์ํ ์์ ์์ฌ๊ฒฐ์ ๋ณด์กฐ ๋๊ตฌ์ด๋ฉฐ, ์ ๋ฌธ์ ํ๋จ์ด๋ ์ ์กฐ์ฌ์ ์ต์ ๋ผ๋ฒจ์ ๋์ ํ์ง ์์ต๋๋ค.