Complete Guide to Aciclovir Side Effects
What Is Aciclovir and How Does It Work?
Aciclovir is an antiviral medication that works by stopping herpes viruses from reproducing in the body. It's commonly prescribed for treating cold sores, genital herpes, chickenpox, and shingles. The medication is available as tablets, dispersible tablets, liquid, cream, and eye ointment. Understanding potential side effects is important for anyone considering or currently taking this treatment.
Common Side Effects of Aciclovir
Most people taking aciclovir tablets experience few or no side effects. When they do occur, common reactions typically include nausea, vomiting, diarrhoea, stomach pain, headache, dizziness, and fatigue. These effects are usually mild and often improve as your body adjusts to the medication. Taking aciclovir with food may help reduce stomach-related side effects.
Serious Side Effects Requiring Medical Attention
Whilst uncommon, some side effects require immediate medical attention. These include signs of kidney problems such as reduced urination, swelling in feet or ankles, and unusual tiredness. Neurological effects like confusion, hallucinations, seizures, or tremors can occur, particularly in elderly patients or those with kidney problems. Severe allergic reactions, though rare, may cause difficulty breathing, swelling of face or throat, and severe skin reactions.
Who Is at Higher Risk of Side Effects?
Certain groups may be more susceptible to aciclovir side effects. Elderly patients, those with kidney disease, dehydrated individuals, and people taking other medications that affect kidney function face increased risk. Patients with compromised immune systems may also experience different reactions. Your healthcare provider will consider these factors when prescribing aciclovir and may adjust dosages accordingly.
Reducing Your Risk of Side Effects
Several strategies can help minimise the risk of side effects when taking aciclovir. Staying well-hydrated by drinking plenty of water helps protect kidney function. Taking the medication with food can reduce stomach upset. Following the prescribed dosage exactly and completing the full course as directed is essential. If you have kidney problems, your doctor may prescribe a lower dose or monitor your kidney function more closely.
When to Contact Your Healthcare Provider
Contact your doctor immediately if you experience severe side effects such as confusion, seizures, unusual bleeding or bruising, signs of kidney problems, or severe allergic reactions. For mild side effects that persist or worsen, speak with your pharmacist or GP for advice. Most side effects are manageable, but professional guidance ensures your safety and treatment effectiveness.
Treatment Options Available Through EverydayMeds
EverydayMeds offers convenient access to aciclovir tablets and other cold sore treatments through our online pharmacy service. Our qualified pharmacists can provide guidance on managing side effects and ensuring safe use of antiviral medications. We also stock alternative treatments like valaciclovir tablets for patients who may not tolerate aciclovir well, ensuring everyone can find a suitable treatment option.
