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warnings and cautions
5 WARNINGS AND PRECAUTIONS Risk of Bleeding: Monitor for signs and symptoms of bleeding. Interrupt treatment with RHAPSIDO if bleeding is observed or pre- and post-surgery. Concomitant use of antithrombotic agents with RHAPSIDO may further increase risk of bleeding. ( 5.1 ) Live Attenuated Vaccines: Avoid live or live-attenuated vaccines in patients receiving RHAPSIDO. ( 5.2 ) 5.1 Risk of Bleeding In placebo-controlled studies in patients with CSU, mucocutaneous-related bleeding occurred in 9% of patients who received RHAPSIDO [see Adverse Reactions (6.1)] . Interrupt treatment with RHAPSIDO if bleeding is observed and resume if the benefit is expected to outweigh the risk. Interrupt treatment with RHAPSIDO for 3 to 7 days pre- and post-surgery or invasive procedures [see Dosage and Administration (2.2)] . Use of antithrombotic agents concomitantly with RHAPSIDO may further increase the risk of bleeding [see Drug Interactions (7.2)] . Consider the benefits and risks of antithrombotic agents when used concomitantly with RHAPSIDO. Monitor for signs and symptoms of bleeding. 5.2 Live Attenuated Vaccines No data are available on the effects of live or live-attenuated vaccines in patients receiving RHAPSIDO. The use of live and live-attenuated vaccines should be avoided in patients receiving RHAPSIDO.
6 ADVERSE REACTIONS The most common adverse reactions (incidence ≥3%) were nasopharyngitis, bleeding, headache, nausea and abdominal pain. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Novartis Pharmaceuticals Corporation at 1-888-669-6682 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse drug reaction (ADR) rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The safety of RHAPSIDO was based on a pooled safety population from two identical clinical trials of 52 weeks duration, REMIX-1 and REMIX-2 [see Clinical Studies (14)] . The pooled safety population consisted of 912 adult patients with CSU who remain symptomatic despite H1 antihistamine treatment and who received RHAPSIDO 25 mg orally twice daily (N=606) or placebo (N=306) for 24 weeks during the double-blind, controlled treatment period of the trial. Adverse reactions that occurred at an incidence greater than or equal to 3% and more common than the placebo group from the pooled safety population (REMIX-1 and REMIX-2) during the 24-week blinded, placebo-controlled treatment period are shown in Table 1. Table 1 Adverse Reactions with RHAPSIDO with Incidence ≥3% and More Common than Placebo in Adult Patients with CSU (REMIX-1 and REMIX-2) a includes acute sinusitis, chronic sinusitis, nasopharyngitis, pharyngitis, pharyngitis streptococcal, rhinitis, rhinitis allergic, and upper respiratory tract infection b includes conjunctival bleeding, contusion, ecchymosis, epistaxis, gingival bleeding, hematoma, hematuria, hemorrhagic ovarian cyst, intermenstrual bleeding, petechiae, purpura, and urinary occult blood c includes headache and migraine d includes abdominal discomfort, abdominal distention, abdominal pain and abdominal pain upper Adverse Reaction RHAPSIDO (N = 606) n (%) Placebo (N = 306) n (%) Nasopharyngitis a 67 (11%) 27 (9%) Bleeding b 55 (9%) 6 (2%) Headache c 41 (7%) 19 (6%) Nausea 18 (3%) 5 (2%) Abdominal Pain d 18 (3%) 6 (2%) Specific Adverse Reactions Bleeding In the pooled safety population (REMIX-1 and REMIX-2), bleeding occurred in 9% of patients treated with RHAPSIDO compared to 2% in the placebo group during the 24-week controlled treatment period [see Dosage and Administration (2.2), Warnings and Precautions (5.1), and Drug Interactions (7.2)] . Petechiae (4%) and contusion (2%) were the most commonly reported reactions in patients treated with RHAPSIDO. No severe bleeding reactions occurred. No association between bleeding reactions and low platelet counts was observed. In patients treated with RHAPSIDO, 0.5% experienced bleeding reactions that led to RHAPSIDO discontinuation, while none of these reactions occurred in the placebo group. Similar safety findings were observed through Week 52 [see Clinical Studies (14)] .