What Are the Common Antiemetics?

What Are the Common Antiemetics?

Antiemetics are drugs used to prevent or treat nausea and vomiting due to multiple causes. Based on their mechanism of action, the most common antiemetics are classified as follows [1]: 1. What Are Dopamine Antagonists? Dopamine antagonists are drugs that block the D2 dopamine receptor in the brain and gastrointestinal neurons by preventing dopamine binding…

What Is Restless Leg Syndrome (Willis-Ekbom Disease)?

What Is Restless Leg Syndrome (Willis-Ekbom Disease)?

Restless leg syndrome (RLS) or Willis-Ekbom disease is a neurological disorder characterized by an irresistible urge to move the legs due to itching, throbbing, and uncomfortable sensations. RLS is a common disease that affects about 10% of the general population [1]. 1. What Is the Main Cause of Restless Leg Syndrome? Although the cause is…

What Are Anticonvulsant Drugs Used For?

What Are Anticonvulsant Drugs Used For?

Anticonvulsant drugs, also known as antiepileptic or antiseizure drugs, are used for the treatment of epileptic seizures. Based on the type and mechanism of action, anticonvulsant drugs are grouped into the following categories: 1. What Is Epileptic Seizure? An epileptic seizure is a neurological disorder due to an abnormally excessive, and repetitive neuronal activity in…

How Does the Brain Processes Sound?

How Does the Brain Processes Sound?

Sounds are detected by the ears in the form of vibrations and transformed into nerve impulses by specialized neurons which then transmit the sound (auditory) information to the auditory cortex for processing. The auditory cortex is located in the temporal lobe of the brain. The transmission of the auditory information through neurons to the auditory…

How Does Taste Work in the Brain?

How Does Taste Work in the Brain?

The part of the brain responsible for taste (gustation) is known as the gustatory cortex or primary gustatory cortex. It is involved in the perception and differentiation between different types of taste [1]. However, there are several steps before taste information reaches the gustatory cortex for processing: The papillae contain taste buds that are specialized…

How Does Smell Get from the Nose to the Brain?

How Does Smell Get from the Nose to the Brain?

Odorous substances in the air are processed through the following steps: 1. What Part of the Brain Is Most Responsible for Smell? There are several and important parts of the brain that are responsible for smell; however, the olfactory bulb is responsible for transmitting the olfactory (smell) information from the olfactory nerves to the brain…