She was worried about the side effects.

Meaning: She was anxious about the potential negative consequences of the medication.

Choice of Words: Worried means to feel anxious or concerned about something. Side effects are the unwanted or negative consequences of a medication or treatment. When you put them together, "worried about the side effects" means she was anxious about the potential negative consequences of the medication.

Alternative Expressions

She was anxious about the potential risks.

Meaning: This sentence means that the female person was feeling worried about the possible negative outcomes that could result from taking a particular action or making a particular decision.

Choice of Words: She is a pronoun that refers to a female person, and was is a verb that indicates an action or state that occurred in the past. Anxious is an adjective that describes a feeling of worry or nervousness, and about is a preposition that indicates the subject of the concern. Potential risks are possible negative outcomes that could occur as a result of a particular action or situation.

She was concerned about the adverse effects.

Meaning: This sentence means that the female person was feeling worried about the potential negative consequences of taking a medication or undergoing a treatment.

Choice of Words: She is a pronoun that refers to a female person, and was is a verb that indicates an action or state that occurred in the past. Concerned is an adjective that describes a feeling of worry or unease, and about is a preposition that indicates the subject of the concern. Adverse effects are negative or harmful consequences that can result from taking a medication or undergoing a treatment.

Related Expressions