Year 1 medicine you need to know Flashcards
What is Codeine?
Codeine is a prescription medication classified as an opioid analgesic, meaning it’s used to relieve pain. It is also a cough suppressant.
How does Codeine work?
Codeine works by binding to opioid receptors in the brain and spinal cord. When it binds to these receptors, it inhibits the transmission of pain signals and alters the perception of pain. This mechanism also suppresses coughing by acting on the brain’s cough center.
What are the indications for codeine?
Pain Relief: Codeine is commonly prescribed for mild to moderate pain relief, such as that caused by injuries, dental procedures, or chronic conditions.
Cough Suppression: It is also used as a cough suppressant, often in combination with other medications like acetaminophen or ibuprofen.
Cautions and Contraindications for codeine
Respiratory depression
Addiction and dependence
Sedation and dizziness
Contraindications: Codeine is contraindicated in patients who are hypersensitive to opioids, in patients with severe respiratory depression, and in patients with acute or severe bronchial asthma.
Common side effects for codeine
Constipation
Nausea and Vomiting
Drowsiness and Dizziness
Sedation
Itching
What is Omeprazole?
Omeprazole is a proton pump inhibitor (PPI) that decreases the amount of acid produced in the stomach. It is available both over-the-counter and with a prescription.
How does omeprazole work?
Omeprazole works by irreversibly blocking the proton pump (H⁺/K⁺-ATPase) in the gastric parietal cells, which are responsible for producing stomach acid. By inhibiting this enzyme, omeprazole effectively reduces the secretion of acid into the stomach, thereby alleviating symptoms associated with excess stomach acid.
What are the indications for omeprazole?
Omeprazole is commonly used to treat conditions such as:
Gastroesophageal reflux disease (GERD)
Peptic ulcer disease (PUD)
Zollinger-Ellison syndrome
Erosive esophagitis
Cautions and Contraindications for omeprazole
Omeprazole should be used with caution in individuals with liver disease, as it is primarily metabolized by the liver.
Patients with osteoporosis or those at risk of fractures should be monitored, as long-term use of PPIs may increase the risk of bone fractures.
Omeprazole may interact with certain medications, such as warfarin, diazepam, and clopidogrel, potentially affecting their effectiveness.
Contraindications include hypersensitivity to omeprazole or any component of the formulation.
Common side effects for omeprazole
Headache
Abdominal pain
Nausea
Diarrhea
Constipation
Flatulence
Rash
What is amlodipine?
Amlodipine is a medication commonly used to treat high blood pressure (hypertension) and certain types of chest pain (angina). It belongs to a class of drugs called calcium channel blockers.
How does amlodipine work?
Amlodipine works by blocking the influx of calcium ions into smooth muscle cells in blood vessels and the heart. By doing so, it relaxes and widens blood vessels, making it easier for the heart to pump blood and thereby reducing blood pressure. Additionally, it increases the supply of blood and oxygen to the heart muscle, which can help relieve chest pain (angina).
What are the indications for amlodipine?
Hypertension
Chronic Stable Angina and Vasospastic Angina (Prinzmetal’s or Variant Angina)
Cautions and Contraindications for amlodipine
Cautions: Amlodipine should be used cautiously in patients with liver disease, as it is primarily metabolized by the liver. Dose adjustments may be necessary in such cases. Patients with heart failure should also be monitored closely when using amlodipine.
Contraindications: Amlodipine is contraindicated in patients with known hypersensitivity to the drug or any of its components. It should also be avoided in patients with severe hypotension (low blood pressure) or shock.
Common side effects for amlodipine
Swelling in the ankles, feet, or hands (peripheral edema)
Flushing
Dizziness
Fatigue
Headache
Nausea
Abdominal pain