The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.
Common Side Effects
Children with XLH:
- Fever (55%)
- Injection-site reaction (52%)
- Cough (52%)
- Vomiting (41%)
- Pain in arm or leg (38%)
- Headache (34%)
- Tooth infection or toothache (34%)
- Diarrhea (24%)
- Low vitamin D levels (24%)
Adults with XLH:
- Back pain (15%)
- Headache (13%)
- Tooth infection (13%)
- Injection-site reaction (12%)
- Restless leg syndrome (12%)
- Low vitamin D levels (12%)
- Dizziness (10%)
Adults with TIO:
- Tooth infection or toothache (19%)
- Muscle spasms (19%)
- Dizziness (15%)
- Constipation (15%)
- Injection-site reaction (15%)
- Rash (15%)
- Headache (11%)
Less Common Side Effects
- Dizziness
- Allergic reaction
- High blood phosphorus levels
Crysvita serious side effects
Contact your healthcare provider immediately if you experience any of the following.
- Serious allergic reaction: trouble breathing, tightness in the throat, hives, itching, fast heartbeat, nausea, stomach pain, dizziness, lightheadedness, swelling in the face or tongue
Source: DailyMed
The following Crysvita side effects have also been reported
Side effects that you should report to your care team as soon as possible:
- Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat
- High phosphorus level—muscle pain or cramps, bone or joint pain, numbness and tingling around the mouth
- Kidney stones—blood in the urine, pain or trouble passing urine, pain in the lower back or sides
- Restless leg syndrome—tingling, crawling, pulling, or other unusual feelings in the legs, restlessness, uncontrolled urge to move
Side effects that usually do not require medical attention (report these to your care team if they continue or are bothersome):
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