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Related Concept Videos

Parenteral Drug Delivery Systems: Injectables, Implants, and Infusion Devices01:28

Parenteral Drug Delivery Systems: Injectables, Implants, and Infusion Devices

Parenteral drug delivery systems play a crucial role in modern therapeutics by enabling the direct administration of drugs into the systemic circulation, bypassing the gastrointestinal tract. These systems are particularly valuable for poorly absorbed oral medications that are unstable in the digestive environment or require rapid onset or sustained therapeutic levels. Delivery is achieved through intravenous, intramuscular, or subcutaneous routes, each selected based on the drug's properties...
Drug Delivery: Parenteral Route01:29

Drug Delivery: Parenteral Route

The parenteral route is a critical method of drug administration. It delivers compounds directly into the systemic circulation and bypasses the gastrointestinal tract. This approach is particularly advantageous for drugs that exhibit poor absorption or instability when administered orally.
There are three primary parenteral routes: intravenous (IV), intramuscular (IM), and subcutaneous (SC). The IV route introduces the drug directly into the bloodstream, ensuring immediate action. The IM route...
Drug Delivery: Miscellaneous Routes01:22

Drug Delivery: Miscellaneous Routes

Drug delivery methods like oral inhalation, nasal sprays, transdermal patches, eye drops, intravitreal injection,  and rectal administration provide localized effects with reduced toxicity.
Oral inhalation and nasal sprays swiftly transfer drugs across the respiratory epithelium's mucosal layer. Inhaled glucocorticoids and bronchodilators directly target lung conditions such as asthma, while fluticasone nasal spray mitigates allergic rhinitis.
Transdermal patches transport drugs through the...
Directly Acting Muscle Relaxants: Dantrolene and Botulinum Toxin01:26

Directly Acting Muscle Relaxants: Dantrolene and Botulinum Toxin

Directly acting muscle relaxants like dantrolene and botulinum toxin (BoNT) have distinct mechanisms and applications. Dantrolene, a hydantoin derivative, acts on the ryanodine receptor (RYR1) in skeletal muscle cells. RYR1 are calcium channels present at the sarcoplasmic reticulum membrane. In response to excitation, they release calcium ions from the sarcoplasmic reticulum to the cytosol. Calcium promotes actin-myosin-mediated contraction of muscles.
The binding of dantrolene to the RYR1...
Drug Accumulation During Multiple Dosing: Repetitive IV Injections01:21

Drug Accumulation During Multiple Dosing: Repetitive IV Injections

Calculating drug dosage and accumulation in multiple-dose regimens is crucial for achieving therapeutic efficacy while avoiding toxicity. This involves determining the plasma drug concentrations over time to optimize dosing schedules. The principle of superposition is fundamental in this process, allowing for the prediction of drug concentration in plasma following multiple doses based on single-dose data.The principle of superposition asserts that the plasma concentration-time curves from...
Nonlinear Pharmacokinetics: Drug Elimination for IV Bolus Injection00:59

Nonlinear Pharmacokinetics: Drug Elimination for IV Bolus Injection

In pharmacokinetics, the elimination rate of a drug following a capacity-limited model is primarily controlled by two parameters: Vmax and KM. These parameters are crucial in how the drug behaves inside the body after administration.
Following the administration of a single intravenous (IV) bolus injection, we can determine the concentration of the drug in the plasma at any given time. This calculation is achieved using a specific equation that integrates the values of Vmax and KM.
We can also...

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Related Experiment Video

Updated: Jul 16, 2026

Ultrasound-guided Botulinum Toxin-A Injections: A Method of Treating Sialorrhea
07:05

Ultrasound-guided Botulinum Toxin-A Injections: A Method of Treating Sialorrhea

Published on: November 9, 2016

Injectable success: from fillers to Botox.

Paul E Kelly1

  • 1Peconic Facial Plastic Surgery, Aquebogue, NY 11931, USA.

Facial Plastic Surgery : FPS
|March 3, 2007
PubMed
Summary

Consumers seek minimally invasive facial rejuvenation options for aging signs like wrinkles and volume loss. Advanced techniques with dermal fillers and Botulinum toxin (Botox) improve outcomes and patient satisfaction.

Area of Science:

  • Aesthetic Medicine
  • Dermatology
  • Cosmetic Surgery

Background:

  • Consumer demand for non-surgical facial rejuvenation is increasing.
  • Early signs of aging include facial folds, wrinkles, and volume loss.
  • Dermal fillers and Botulinum toxin (Botox) are popular rejuvenation treatments.

Purpose of the Study:

  • To highlight the growing need for advanced injection techniques in aesthetic medicine.
  • To emphasize the importance of physician expertise in achieving optimal results with fillers and Botox.
  • To discuss the evolution of techniques for safe and effective facial rejuvenation.

Main Methods:

  • Review of current trends in non-surgical facial rejuvenation.
  • Discussion of the properties and applications of various dermal fillers.

Related Experiment Videos

Last Updated: Jul 16, 2026

Ultrasound-guided Botulinum Toxin-A Injections: A Method of Treating Sialorrhea
07:05

Ultrasound-guided Botulinum Toxin-A Injections: A Method of Treating Sialorrhea

Published on: November 9, 2016

  • Analysis of the mechanism of action and clinical use of Botulinum toxin (Botox).

    • Main Results:

    • Educated consumers actively seek treatments with minimal downtime.
    • Physicians must stay current with injection techniques and product safety for fillers and Botox.
    • Understanding product limitations and possibilities is key for successful outcomes.

    Conclusions:

    • Expertise in dermal fillers and Botulinum toxin (Botox) is crucial for successful facial rejuvenation.
    • Patient satisfaction is linked to the injector's understanding of available aesthetic treatments.
    • Continued education and refined techniques enhance the safety and efficacy of non-surgical cosmetic procedures.