For example:

Firstly is grapefruit juice that enhance the oral absorption of many drugs that are substrates to CYP3A4 enzymes (carbamazepine,cyclosporine, felodipine, triazolam)

Next are Orlistat and fat-soluble vitamins.Orlistat decreases the absorption of dietary fat via inhibition of lipase in GIT.The unabsorbed fat such as vehicle to trap fat-soluble vitamin in the intestinal lumen & reduces the bioavailability of these vitamins.

-It is not always (may or may not) related to the administered drug.

- Harm caused by the drug (adverse drug reactions and overdoses).

- Harm from the use of the drug (including dose reduction and discontinuation of drug therapy). 

-ADEs may result from medication errors but most do not.

On the other hand, medications are taken within 30 minutes of a meal to avoid stomach irritation. For example, non-steroidal anti-inflammatory drugs, Prednisolone, Valproate, Metformin can cause stomach irritation when taken on an empty stomach. 

Lastly, taking anti-diabetic medications with food can help avoid the risk of hypoglycemia or low blood sugar levels. The anti-diabetic medications need to be taken with food not only to minimize the risk of hypoglycemia but also to minimize potential gastrointestinal adverse effect. 

- It can be defined as an error that occurred and reached the patient.

-This error can give harm to the patient, including adverse reactions, worsening medical conditions, hospitalization or even can lead to death.

-These errors are typically reported and documented as part of the healthcare system's incident reporting and quality improvement processes.

- It requires intervention and corrective measures to mitigate harm to the patient, such as providing appropriate treatment, monitoring, or supportive care.

Near misses medication error:

- It can be defined as any medication error that does not reach patient.

- Near misses do not result in harm to patient because the error is detected before it reaches them

- Its often detected through routine checkup, safety protocols, or alert systems designed to identify potential errors before its give harm to the patient.

- Near misses provide valuable opportunities for healthcare professionals to analyze and understand potential vulnerabilities in the medication process and take corrective actions to prevent future errors.

NIK SYAZA SYAFIQAH BINTI NIK AZIMAN
SMIDIET (067154)

 Simvastatin and Grapefruit Juice

Simvastatin is a medication commonly prescribed to lower cholesterol levels. Grapefruit juice is known to interact with simvastatin, leading to a type A pre-systemic interaction.

Mechanism:

Grapefruit juice contains compounds called furanocoumarins that inhibit an enzyme called CYP3A4, which is responsible for the metabolism of simvastatin in the liver. When someone consumes grapefruit juice while taking simvastatin, the furanocoumarins inhibit CYP3A4, resulting in decreased metabolism of simvastatin. As a result, the blood levels of simvastatin can increase significantly.

Consequences:

The increased blood levels of simvastatin can lead to an increased risk of adverse effects associated with the drug, such as muscle pain, liver toxicity, and a rare but serious condition called rhabdomyolysis. Rhabdomyolysis involves the breakdown of muscle tissue, which can lead to kidney damage or failure.

-To prevent this interaction, healthcare professionals typically advise patients taking simvastatin to avoid consuming grapefruit juice.

Side effects can manifest as physical, psychological, or behavioral changes that deviate from the intended or expected outcome of a treatment. They can range from mild and temporary discomfort to more serious and potentially harmful reactions. Some common examples of side effects include drowsiness, nausea, headaches, dizziness, digestive issues, allergic reactions, mood changes, and changes in blood pressure or heart rate.