Quick Side Effects Reference & Management Solutions
Common Aciclovir Side Effects (Affecting 1-10% of users)
The most frequently reported side effects of aciclovir tablets include nausea, diarrhoea, headache, and dizziness. These reactions typically occur within the first few days of treatment and often resolve as your body adjusts to the medication. If you experience mild nausea, try taking aciclovir with food or milk to reduce stomach irritation. For headaches, ensure adequate hydration and consider paracetamol if symptoms persist.
Gastrointestinal Issues Management
Stomach upset affects approximately 5% of aciclovir users. To minimise digestive side effects, take tablets with a full glass of water and avoid empty stomach dosing. If diarrhoea occurs, maintain fluid intake and avoid dairy products temporarily. Persistent gastrointestinal symptoms lasting beyond 48 hours warrant medical review, as dose adjustment may be beneficial.
Neurological Side Effects Identification
Dizziness, confusion, or unusual fatigue may indicate aciclovir affecting your nervous system. These symptoms are more common in elderly patients or those with kidney problems. If experiencing significant dizziness, avoid driving and sudden position changes. Confusion, hallucinations, or severe tremors require immediate medical attention and possible treatment discontinuation.
Serious Allergic Reactions Warning Signs
Although rare (less than 1%), severe allergic reactions to aciclovir can be life-threatening. Watch for skin rash, swelling of face or throat, difficulty breathing, or severe dizziness. These symptoms require emergency medical treatment. EverydayMeds stocks alternative antiviral treatments including valaciclovir tablets, which may be suitable if aciclovir causes allergic reactions.
Alternative Treatment Options
If aciclovir tablets cause troublesome side effects, several alternatives are available through EverydayMeds. Valaciclovir 500mg tablets often cause fewer gastrointestinal side effects and require less frequent dosing. Topical aciclovir 5% cream provides localised treatment with minimal systemic absorption, reducing the risk of oral medication side effects whilst still providing effective cold sore management.
