Fig. 1.1 Conceptual depiction of plasma drug concentrations after repeated administration from a conventional dosage form ( thin line ) and from a controlled release system ( bold line )
Abstract Repeated drug exposure induces short- and long-term neuroadaptations in brain reward circuitries that are normally involved in the regulation of motivation. Hence, repeated drug exposure has been suggested to also affect the drive to acquire natural reinforcers.
bstract Although drug-induced adaptations in the prefrontal cortex (PFC) may contribute to several core aspects of addictive behaviors, it is not clear yet whether drugs of abuse elicit changes in synaptic plasticity at the PFC excitatory synapses.
In rats, continuous cocaine access during long self-administration sessions (6 versus 12 hours) promotes the develop-ment of behavioral symptoms of addiction. This has led to the assumption that taking large amounts of drug during extended daily bouts is necessary to develop an addiction phenotype.
Long-acting drug delivery formulations enable sustained and prolonged drug release at the site of action or for systemic delivery, overcoming the need for frequent and repeated drug...
Given the limited evidence for differences in clinical outcomes or ADRs between two-weekly and four-weekly depot administration, patient preference and convenience should still govern the choice of antipsychotic depot treatment.
Abstract. Repeated administration of the long-acting glucagon-like peptide 1 receptor agonist exendin-4 (EX-4) has been shown to reduce food intake and body weight and do so without a rebound increase in food intake after treatment termination.
Repeated administration of morphine is associated with tolerance to its antinociceptive properties. However, constipation remains the major side effect of chronic exposure to morphine. In contrast, previous studies suggest that tolerance to opioids develops in the ileum of several species.
The optimal administration depends on the severity of the disease, the sensitivity and responsiveness of the patient, as well as his body weight and age. Shaking the vial.Confusion when repeated too early. As long as the symptoms are still in motion, the remedy must not be repeated.
