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Revision as of 12:22, 28 August 2011 by BogBot (talk | contribs) (populated new fields in {{drugbox}} and reordered per bot approval. Report errors and suggestions to User_talk:BogBot)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff) Pharmaceutical compound | |
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| Clinical data | |
|---|---|
| Trade names | Plendil |
| AHFS/Drugs.com | Monograph |
| MedlinePlus | a692016 |
| Routes of administration | Oral |
| ATC code | |
| Legal status | |
| Legal status |
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| Pharmacokinetic data | |
| Bioavailability | 15% |
| Metabolism | Hepatic |
| Elimination half-life | ?? |
| Excretion | Renal |
| Identifiers | |
IUPAC name
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| CAS Number | |
| PubChem CID | |
| DrugBank | |
| ChemSpider | |
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| KEGG | |
| ChEBI | |
| ChEMBL | |
| CompTox Dashboard (EPA) | |
| ECHA InfoCard | 100.149.305  |
| Chemical and physical data | |
| Formula | C18H19Cl2NO4 |
| Molar mass | 384.259 g/mol g·mol |
| 3D model (JSmol) | |
SMILES
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InChI
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Felodipine is a calcium channel blocker (calcium antagonist), a drug used to control hypertension (high blood pressure). It is marketed under the brand name Plendil by AstraZeneca and Renedil by Sanofi-Aventis. The formulation patent for the substance expired in 2007.
AstraZeneca dropped Plendil from its support and AZ&Me free Rx access program in October 2008.
Interactions
Studies dating back to 1989 have suggested that felodipine in combination with grapefruit juice can cause toxic effects. Oral administration of felodipine is first metabolized in the gastrointestinal tract and liver by the enzyme CYP3A4. Grapefruit juice contains bergamottin which is found to have an inhibiting effect over this enzyme and as a result the bioavailability of the drug increases, raising the risk for abnormal side effects.
Contraindications and cautions
contraindicated with allergy to felodipine or other calcium channel blockers, sick sinus syndrome, heart block(second and third degree, lactation. use cautiously with pregnancy, impaired hepatic function.
Synthesis
Berntsson, P. B.; Carlsson, A. I.; Gaarder, J. O.; Ljung, B. R.; 1981, U.S. patent 4,264,611.
References
- AstraZeneca MI Department, 16th April 2010
- Jawad Kiani, Sardar Z Imam (2007). "Medicinal importance of grapefruit juice and its interaction with various drugs". Nutr J. 6 (33): 33. doi:10.1186/1475-2891-6-33. PMC 2147024. PMID 17971226.
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