Does this medication have side effects?
The following side effects are associated with Valtrex Oral:
Common side effects:
| Head Pain | Less Severe |
| Feel Like Throwing Up | Less Severe |
Infrequent side effects:
| Painful Periods | Severe |
| Disorder of the Digestive System | Less Severe |
| Incomplete or Infrequent Bowel Movements | Less Severe |
| Joint Pain | Less Severe |
| Dizzy | Less Severe |
| Low Energy | Less Severe |
| Loss of Appetite | Less Severe |
| Throwing Up | Less Severe |
| Diarrhea | Less Severe |
| Stomach Cramps | Less Severe |
Rare side effects:
| High Blood Pressure | Severe |
| Kidney Failure | Severe |
| Erythema Multiforme | Severe |
| Hives | Severe |
| Coma | Severe |
| Seizures | Severe |
| Trouble Breathing | Severe |
| Life Threatening Allergic Reaction | Severe |
| Giant Hives | Severe |
| Decreased Blood Platelets | Severe |
| Decreased Neutrophils a Type of White Blood Cell | Severe |
| Feeling Restless | Less Severe |
| Aggressive Behavior | Less Severe |
| Sun-Sensitive Skin | Less Severe |
| Hallucination | Less Severe |
| Involuntary Quivering | Less Severe |
| Uncoordinated | Less Severe |
| Rash | Less Severe |
| Fast Heartbeat | Less Severe |
| Confused | Less Severe |
| Behaving with Excessive Cheerfulness and Activity | Less Severe |
