Drug Interactions: Advise patients not to use any oral phosphate and/or active vitamin D analog products [see Contraindications].
Hypersensitivity Reactions: Advise patients that CRYSVITA may cause hypersensitivity events such as rash, injection site rash and urticaria. Instruct the patients to contact their physician if such reactions occur [see Clinical Trials Experience under Adverse Reactions].
Injection Site Reactions: Inform patients that injection site reactions (e.g. erythema, rash, swelling, bruising, pain, pruritus, urticaria, and hematoma) have occurred at the site of CRYSVITA injection. Instruct the patients to contact their physician if such reactions occur [see Clinical Trials Experience under Adverse Reactions].
Restless Leg Syndrome: Advise patients that CRYSVITA can induce RLS or worsen the symptoms of existing RLS. Instruct the patients to contact their physician if such a reaction occurs [see Clinical Trials Experience under Adverse Reactions].
Pregnancy: [See Pregnancy under Use in Pregnancy & Lactation.]