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Absolute bioavailability refers to the bioavailability of a drug when administered via an extravascular dosage form (i.e. oral tablet, suppository, subcutaneous, etc.) compared with the bioavailability of the same drug administered intravenously (IV). This is done by comparing the AUC of the non-intravenous dosage form with the AUC for the drug ...
Molecular weight 265 000 high molecular weight iron dextran 165 000 low molecular weight iron dextran 289 000 - 444 000 34 000 - 60 000 750 000 150 000 150 000 Maximum approved dosage (mg) 100 100 125 200 510 20 mg per kg 1000 mg if patient weight is > 66 kg Test dose required Yes Yes No No No No No Iron concentration (mg/mL) 50 50 12.5 20 30
Once a drug's bioavailability has been established it is possible to calculate the changes that need to be made to its dosage in order to reach the required blood plasma levels. Bioavailability is, therefore, a mathematical factor for each individual drug that influences the administered dose.
Intravenous therapy (abbreviated as IV therapy) is a medical technique that administers fluids, medications and nutrients directly into a person's vein.The intravenous route of administration is commonly used for rehydration or to provide nutrients for those who cannot, or will not—due to reduced mental states or otherwise—consume food or water by mouth.
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The drug interactions between sedative-hypnotic agents and adjuvant agents suggest that dosing regimens cannot be fixed. [19] Instead, dosing should be based on adjusted body weight or estimated lean body weight, especially for obese patients. It is recommended that drug doses be titrated in brief intervals (around 20 to 60 seconds). [22]
The term dosage form may also sometimes refer only to the pharmaceutical formulation of a drug product's constituent substances, without considering its final configuration as a consumable product (e.g., capsule, patch, etc.). Due to the somewhat ambiguous nature and overlap of these terms within the pharmaceutical industry, caution is ...
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