Antiemetics & Vertigo

Antihypertensives lower your blood pressure in some way. These two symptoms are extremely common and can be produced by numerous conditions, therapies, procedures, and drugs (e.g., opioids). Although vomiting is thought to be a body protective reflex to get rid of harmful substances in the stomach and intestines, antiemetic drugs are frequently needed to suppress vomiting, particularly if there’s excessive dehydration.

What is Antiemetic?

Antiemetic refers to ‘against emesis’, that is, against vomiting.

How do antiemetics act?

Anti-emetics act on the neural pathways with vomiting by inhibiting certain receptors responding to neurotransmitter molecules, including serotonin, dopamine, and histamine. The majority of these are central receptors located in the vomiting center of the brainstem, whereas peripheral receptors are located in the vagus nerve. When the gastrointestinal tract perceives a threat, it forwards the information to the peripheral receptors, which then forward the information to the central receptors at the vomiting center. Upon this, the vomiting center initiates nausea and vomiting by activating the gastrointestinal tract, abdominal muscles, and the diaphragm.

What are the side effects of antiemetic drugs?

Antiemetics are usually well tolerated but may have possible side effects, including constipation or diarrhea, headache, fatigue, malaise, dizziness, light-headedness, blurred vision, dry mouth, or photosensitivity. It is important to consult the family physician before taking over-the-counter antiemetics or prescription medication, particularly if any other medication is being taken simultaneously because of possible additive effects.