Final answer:
Acyclovir (Zovirax) can cause kidney damage and skin rash as side effects, but it does not typically cause gastrointestinal bleeding or hallucinations.
Step-by-step explanation:
Acyclovir (Zovirax) is an antiviral medication used to treat infections caused by viruses. While it is generally well-tolerated, it does have potential side effects. Among the side effects listed, kidney damage (b) is a known potential adverse effect of acyclovir, particularly in high doses or in patients with pre-existing kidney issues. It's important to monitor kidney function when on acyclovir. Other side effects can include skin rash (d), which is also a potential reaction. Gastrointestinal bleeding and hallucinations are not commonly associated with acyclovir use.
For example, in severe cases, acyclovir can lead to acute renal failure, which can be potentially life-threatening. Symptoms of kidney damage may include decreased urine output, swelling in the legs or ankles, and fatigue.
It's important to monitor kidney function while taking acyclovir and discuss any concerns with a healthcare professional.