Does interferon beta-1a IM have side effects?
The following side effects are associated with interferon beta-1a IM:
Common side effects of interferon beta-1a IM:
| Fever | Severe |
| Flu-Like Symptoms | Severe |
| Chills | Severe |
| Head Pain | Severe |
| Infection | Severe |
| Feeling Weak | Severe |
| Urinary Tract Infection | Less Severe |
| Muscle Pain | Less Severe |
| Feel Like Throwing Up | Less Severe |
Infrequent side effects of interferon beta-1a IM:
| Depression | Severe |
| Widening of Blood Vessels | Severe |
| Acute Infection of the Nose, Throat or Sinus | Severe |
| Itching | Severe |
| Hives | Severe |
| Seizures | Severe |
| Dizzy | Severe |
| Rash | Severe |
| Puffy Face from Water Retention | Severe |
| Wheezing | Severe |
| Trouble Breathing | Severe |
| Chest Pain | Severe |
| Stomach Cramps | Severe |
| Allergic Reaction caused by a Drug | Severe |
| Signs and Symptoms at Injection Site | Severe |
| Anemia | Severe |
| Having Thoughts of Suicide | Severe |
| Problems with Eyesight | Less Severe |
| Sinus Irritation and Congestion | Less Severe |
| Hair Loss | Less Severe |
| Joint Pain | Less Severe |
| Frequent Urination | Less Severe |
| Not Feeling Well | Less Severe |
Rare side effects of interferon beta-1a IM:
| Chronic Heart Failure | Severe |
| Bronchitis | Severe |
| Acute Liver Failure | Severe |
| Liver Damage | Severe |
| High Amount of Bilirubin in the Blood | Severe |
| Swollen Tongue | Severe |
| Dead Skin | Severe |
| Abnormal Liver Function Tests | Severe |
| Life Threatening Allergic Reaction | Severe |
| Overactive Thyroid Gland | Severe |
| Underactive Thyroid | Severe |
| Acquired Decrease of All Cells in the Blood | Severe |
| Decreased Blood Platelets | Severe |
| Mental Disorder with Loss of Normal Personality & Reality | Severe |
| Abnormally Long or Heavy Periods | Less Severe |
| Bleeding Not Related to Menstrual Period | Less Severe |
