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GregoryRx Press Lloyd L. Gregory School of Pharmacy September 2014 Volume 9 Issue 3 Rescheduling of Hydrocodone Combination Products Inside This Issue Beginning October 6, 2014, all hydrocodone combination products will be switched from a controlled scheduled III classification to a schedule II classification. Hydrocodone is a semi Rescheduling of synthetic opioid derived from codeine and has high risk for abuse with the potential to Hydrocodone cause both physical and psychological dependence. These medications are often Combination Products prescribed for patients suffering from certain conditions that may induce moderate to New Drug Approval: Suvorexant severe pain from various primary conditions. According to the DEA, in 2013, (Belsomra®) approximately 137 million prescriptions containing combination hydrocodone and either Medication Review acetaminophen or an antitussive agent were dispensed. Prior to this new rule, only Spotlight: fluticasone hydrocodone bitrate as a single entity was classified as a schedule controlled II substance furoate/vilanterol under the Controlled Substances Act (CSA) that passed in 1971. Although the DEA stands (BREO ELLIPTA®) firm that this solution will most likely decrease hydrocodone’s abuse, overdose, and Medication Review emergency room visits, the American Pharmacist Association (APhA) has a different Spotlight: Ceftaroline viewpoint on this decision stating that “stricter requirements for Schedule II drugs related fosamil (Teflaro®) to prescribing and dispensing would restrict patient access and delay relief of pain.” APhA postulates that this change will introduce discrepancies in healthcare due to stricter storage and handling laws for Schedule II substances. With these new changes taking place, the decision to prescribe and dispense hydrocodone combination products by health professionals may be a difficult one to make. It is imperative that clinicians continue to exercise sound medical judgment for appropriate medical use according to practice standards to ensure optimal care for pain control. Below are tables which describe reasons for the scheduling change, updates practitioners on how these changes will affect practice, and reviews commonly available combination hydrocodone products. For detailed information on the ruling, review the final DEA Rule. Table 1. What are the Reasons for Schedule Change? Diversion or misuse of the drug High addictive potential Impacts the health and safety of surrounding communities Increased abuse and overdose Widespread prescribing in high quantities Table 2. How Does this New Rule Change Practice? Call in prescriptions will not be allowed (exemptions apply in emergency situations) Certain states only accept schedule II prescriptions on triplicate forms that are only provided by the department of justice. Every prescription must be accounted for by the pharmacist and entered separately into systems (technicians in some state are legally not allowed to perform these tasks) Faxing prescriptions will not be allowed (exemptions apply) Inventory on the drug will be strictly checked and monitored with required record keeping More storage space will be needed for these products to be secured with other existing scheduled II’s Prescriptions will allow a 30 day supply with no refills with up to a 90 day supply with multiple prescriptions and no refills Patients may require more frequent visits to physician’s offices to obtain new written prescriptions All remaining valid refills for hydrocodone combinations written before October 6, 2015 may be granted before April 28, 2015 per DEA regulations Table 3. A Review of Common Hydrocodone Combination Products Generic Brand Hydrocodone Bitartrate/Acetaminophen Oral Anexsia®, Lorcet®, Lortab®, Vicodin HP®, Maxidone®, Norco®, Zydone Ceta Plus® Hydrocodone Bitartrate/Chlorpheniramine Maleate Vituz® Hydrocodone Bitartrate/Homatropine Methylbromide Hycodan®, Hydromet®, Tussigon® Hydrocodone Bitartrate/Ibuprofen Ibudone®,Reprexain®, Vicoprofen® Hydrocodone Bitartrate/Pseudoephedrine Hydrochloride Pancof HC®, Rezira® Hydrocodone/Chlorpheniramine/Pseudoephedrine Hydron PSC®, Hyphed®, NotussForte®, Zutripro® Hydrocodone Polistirex/Chlorpheniramine Polistirex Oral Pennkinetic®, TussiCaps®, Tussionex® Micromedex 2014. Drug Enforcement Administration 2014. Federal Register Daily Journal of the United States Govt. 2014. American Pharmacist Association 2014. Pharmacist’s Letter 2014;30(10):301001. 2 New Drug Approval: Suvorexant (Belsomra®) For the Treatment of Insomnia On August 13, 2014, suvorexant (Belsomra ®) was FDA approved for the treatment of insomnia, defined as difficulties with sleep onset or sleep maintenance. Suvorexant is the first and only drug in the novel class of orexin receptor antagonists. The orexin neuropeptide is located in the hypothalamus. The orexin function is to promote wakefulness by blocking the wake-promoting neuropeptides orexin A and orexin B to receptors OX1R and OX2R. When the orexin receptor is blocked by suvorexant, it facilitates the transition from wake to sleep. Current medications for insomnia affect the inhibitory neurotransmitter gamma-aminobutyric acid (GABA). This results in a decrease in neuronal excitability leading to sedative effects. According to Institute of Medicine, insomnia is the most prevalent sleep disorder in the general population. An estimated 50 to 70 million adults in the US have sleep or wakefulness disorders. The FDA approval was based on the results of two similarly designed phase III, multicenter, randomized, doubleblind, placebo controlled, parallel group studies to evaluate the efficacy of suvorexant in patients with primary insomnia. The two trials compared the change from baseline in subjective total sleep time in minutes (sTSTm) and time to sleep onset in minutes(sTSOm), wake time after persistent sleep onset (WASO), and latency to onset of persistent sleep (LPS). Patients were randomized to receive suvorexant 20 mg or placebo. Those randomized to the suvorexant group who were classified as elderly who were 65 years of age or older received a 15 mg dose. Patients were included if they were diagnosed with primary insomnia and reported having difficulty initiating and maintain sleep 4 weeks prior to visit 1. Patients with a history or diagnosis of another sleep disorder or having difficulty sleeping due to a medical condition were excluded. Results from one study showed mean baseline of LPS in suvorexant and placebo were 69 minutes and 66 minutes, respectively, with a change in baseline of -35 and -27 with a difference of -8 minutes (p<0.01). Baseline scores of time to sleep onset were 64 minutes and 67 minutes in suvorexant and placebo groups, respectively. Results of sTSOm showed a decrease from baseline of -23 and -17 with a difference of -5 (p<0.05). The most common side effects observed in the clinical trials were somnolence, headache, and dizziness. In July 2013, the FDA rejected suvorexant approval due to safety concerns with higher doses. These doses led to potential major safety concerns which include daytime somnolence, impaired driving ability, unconscious nighttime behaviors, suicidal ideation and narcolepsy-like syndrome. Merck suggested adults start on 20 mg and increase to 40 mg if needed and elderly start on 15 mg and increase to 30 mg if needed. The FDA concluded that 30 mg and 40 mg were not safe. Currently suvorexant is approved in four different strengths: 5, 10, 15, and 20 mg. The recommended dose is 10 mg for most patients. The FDA stated if 10 mg dose is tolerated but not effective then 15 mg and 20 mg doses would be acceptable. The maximum dosage in a 24 hour period is 20 mg. Patients receiving concomitant therapy that inhibit the cytochrome P-450 enzyme should take a 5 mg dose and take no more than 10 mg per night. Suvorexant should be taken within 30 minutes of going to bed and should only be taken for those planning to sleep for at least 7 hours. Suvorexant is contraindicated in patients with narcolepsy and is labeled as a pregnancy category C. It should also be noted that suvorexant will be classified as a Schedule IV controlled substance, along with other insomnia medications: Ambien®, Lunesta®, and Sonata®. Pharmacists dispensing this new medication should also counsel patients on the importance of good sleep hygiene habits such as minimizing nicotine, caffeine, large meals before bed, avoid napping during the day, and encourage exercise in their daily routine. Belsomra [package insert]. Merck & Co., Inc. Whitehouse Station, NJ, 2014 3 Medication Spotlight: BREOELLIPTA ® and Teflaro® Fluticasone furoate/vilanterol (FF/VI) (BREO ELLIPTA®) Ceftaroline Fosamil (Teflaro®) Therapeutic class Inhaled corticosteroid (ICS)/Long-acting beta-2 adrenergic agonist (LABA) Date of approval May 10, 2013 October 29, 2010 Indications COPD maintenance treatment Reduce COPD exacerbations Medications for Same Indication per Current Clinical Practice Guidelines Advair 250/50 mg bid Dosage/Frequency Acute Bacterial Skin and Soft skin Infections (ABSSSI) Community Acquired Bacterial Pneumonia (CABP) ABSSSI w/ MRSA Vancomycin, Linezolid, Clindamycin, Daptomycin, Cefaroline, Doxycycline, Minocycline, TMP-SMX CABP (inpatient) Cefotaxime, ceftriaxone, or ampicillin-sulbactam + azithryomycin or a fluoroquinolone, add vancomycin or linezolid for MRSA I.V.: 600 mg every 12 hrs Renal Dosing o No adj forCrCL >50ml/min o CrCl>30-50ml/min: 400mg every 12 hrs o CrCl 15-30ml/min: 300mg every 12 hrs o CrCl<15ml/min: 200mg every 12hrs Compatible with o Dextrose 2.5 or 5% in water o Ringers injected , lactated o Sodium Chloride Diarrhea Nausea Hypersensitivity One inhalation powder FF 100 mcg/VI 25 mcg once daily Common Adverse Drug Reactions Headache Nasopharyngitis Hypertension Black Box Warning Asthma related deaths: LABAs increase the risk of asthma related death Drug Interactions Avoid strong CYP 3A4 inhibitors: increases systemic corticosteroid and CV ADR can occur Concomitant MAOIs and TCAs: may prolong QTC interval Concomitant beta blocker: may block FF/VI effects and cause bronchospasm Concomitant non-potassium-sparing diuretics: can worsen hypokalemia and/or ECG changes Probenecid may increase the serum concentration of cephalosporin Inhale and hold breathe for 3-4 seconds, after Do not use longer or less than told by Pharmacist Cephalosporin Known hypersensitivity to this or any cephalosporin 4 Counseling Points and Clinical pearls Clinical relevance exhaling, rinse mouth with water and spit (reduce risk of oral candidiasis) Do not shake the inhaler Discard inhaler within 6 weeks of opening foil or when counter reaches zero Advair 250/50 BID is currently used for maintenance therapy, FF/VI is a more convenient once daily alternative prescriber to prevent re-infection Do not use if solution is cloudy, leaking or has particles, or changes color If missed dose take dose as soon as you remember, or if close to time for next dose skip missed dose and go back to normal schedule Do not take 2 doses for missed dose Has better binding affinity compared to ceftriaxone, cefotaxime, oxacillin, and penicillin G for penicillin-binding proteins in MSSA, MRSA and S. pneumoniae References: Lexi-Comp, 2014. Micromedex, 2014. IDSA Guidelines Management of Skin and Soft Tissue 2014. IDSA Guidelines Management of Community-Acquired Pneumonia in Adults. Breo Ellipta [package insert]. GOLD Guidelines Management of COPD 2013. Philippians 4:6 (NIV) “Do not be anxious about anything, but in every situation, by prayer and petition, with thanksgiving, present your requests to God.” The Drug Information Center is operated as a training site for experiential purposes. Students, under supervision of a pharmacy faculty member, answer questions from preceptors. The GSOP DIC currently partners with Wellington Regional Medical Center. The Center is open Monday to Friday, 8:30 am to 4:30 pm. Phone: 561-803-2728. You can also e-mail your questions to: [email protected]. This issue was written by Steven Sabatell and JohnPaul Ramirez, PharmD Candidates 2015 Edited by Faculty Preceptor: Krisy Thornby, PharmD Thank you to Leonid Slobodskoy, PharmD, Victoria Scott, PharmD, and the pharmacy team at WRMC for the generation of newsletter topics! 5