Common side effects of penicillin include which of the following?

When considering common side effects of penicillin, rash is a notable reaction that can occur in many patients. Penicillin can trigger hypersensitivity reactions, which may manifest as skin rashes. This side effect is significant because while some individuals may experience mild rashes, others can develop more severe reactions, such as anaphylaxis, making it important for healthcare providers to monitor for these symptoms.

While vomiting is included among common reactions to many medications, it is less noted as a frequent side effect specifically tied to penicillin. In contrast, fever and fatigue are not typically associated directly with penicillin usage. The seizure of rash as a prominent side effect highlights the important aspect of monitoring for allergic responses when prescribing penicillin and underscores the need for vigilance in patient care.