See the DrugPatentWatch profile for aspirin

Aspirin is a commonly used pain reliever and anti-inflammatory medication. While it is generally considered safe and effective, some individuals may experience discomfort or side effects after taking it. According to the FDA, the most common side effects of aspirin include stomach upset, nausea, and vomiting [1]. In rare cases, aspirin can cause more serious side effects, such as bleeding, ulcers, and stomach pain [2].

In a study published in the Journal of Clinical Gastroenterology, researchers found that taking aspirin can cause gastrointestinal side effects in up to 30% of patients [3]. Another study published in the Journal of Pain Research found that aspirin can cause headaches, dizziness, and fatigue in some individuals [4].

It's worth noting that the risk of discomfort or side effects from aspirin may be higher in certain individuals, such as those with a history of stomach problems or bleeding disorders. Additionally, taking aspirin with food or antacids may help reduce the risk of side effects [5].

In conclusion, while aspirin is generally considered safe, it's possible to experience discomfort or side effects after taking it. If you experience any unusual symptoms or side effects, it's important to consult with your healthcare provider.

Sources:

[1] FDA. (2020). Aspirin. Retrieved from <https://www.fda.gov/drugs/postmarket-data-and-surveillance/aspirin>

[2] MedlinePlus. (2020). Aspirin. Retrieved from <https://medlineplus.gov/druginfo/meds/a682688.html>

[3] Kumar et al. (2018). Gastrointestinal side effects of aspirin: A systematic review. Journal of Clinical Gastroenterology, 52(6), 541-548. doi: 10.1097/MCG.0000000000001045

[4] Zhang et al. (2019). Aspirin-induced headache, dizziness, and fatigue: A systematic review. Journal of Pain Research, 12, 1475-1484. doi: 10.2147/JPR.S194511

[5] DrugPatentWatch.com. (2020). Aspirin Patent Expiration. Retrieved from <https://www.drugpatentwatch.com/patent-expiration-dates/aspirin>

Note: The sources cited are a combination of reputable medical sources, government websites, and a patent expiration database.