scholarly journals Antibiotic and Oral Contraceptive Drug Interactions: Is There a Need for Concern?

1999 ◽  
Vol 10 (6) ◽  
pp. 429-433 ◽  
Author(s):  
George G Zhanel ◽  
Shannon Siemens ◽  
Kathryn Slayter ◽  
Lionell Mandell
Keyword(s):  
Oral Contraceptive ◽  
Drug Interactions ◽  
Birth Control ◽  
Oral Contraceptives ◽  
Data Extraction ◽  
Data Synthesis ◽  
Contraceptive Failure ◽  
Medline Search ◽  
Search Terms ◽  
Clinical Consequences

OBJECTIVE: To assess the clinical significant of antibiotic and oral contraceptive drug interactions.DATA SELECTION: MEDLINE search from 1975 to 1998 (September) inclusive. Search terms ‘antitiobic’, ‘oral contraceptive’ and ‘pregnancy’ were included. Published papers as well as references from these papers were reviewed. Papers documenting mechanistic interactions between antibiotics and oral contraceptives were included.DATA EXTRACTION: Studies reporting oral contraceptive pharmacokinetics, mechanisms, incidence, implicated antibiotics and clinical consequences of antibiotic/oral contraceptive drug interactions.DATA SYNTHESIS: Reports of oral contraceptive failure seem to be most numerous in women using preparations containing 30 μg of ethinylestradiol and 150 μ g of levonorgestrel. Rifampin is the only antibiotic that has been reported to reduce plasma estrogen concentrations. When taking rifampin, oral contraceptives cannot be relied upon and a second method of contraception is mandatory. Amoxicillin, ampicillin, griseofulvin, metronidazole and tetracycline have been associated with contraceptive failure in three or more clinical cases. When these agents are used, the clinician should discuss the available data with the patient and suggest a second form of birth control. Other antibiotics are most likely safe to use concomitantly with oral contraceptives.CONCLUSIONS: Rifampin is the only antibiotic to date that has been reported to reduce plasma estrogen concentrations. Oral contraceptives cannot be relied upon for birth control while taking rifampin.

Dexrazoxane: A New Cardioprotective Agent

1998 ◽  
Vol 14 (5) ◽  
pp. 182-190 ◽  
Author(s):  
Beverly D Abbott ◽  
Cindy M Ippoliti
Keyword(s):  
Supportive Care ◽  
English Language ◽  
Bolus Dose ◽  
Cardiac Tissue ◽  
Data Extraction ◽  
Data Synthesis ◽  
Medline Search ◽  
Search Terms ◽  
Study Selection ◽  
Clinically Significant

Objective: To review the literature discussing the use of dexrazoxane (e.g., Zinecard, ICRF-187) to prevent doxorubicin-induced cardiotoxicity. Data Sources: Pertinent English-language reports of studies in humans were retrieved from a MEDLINE search (January 1980-January 1997); search terms included chelating agents, razoxane, dexrazoxane, Zinecard, ICRF-187, ADR-529, and ICRF-159. Study Selection: Representative articles discussing the chemistry, pharmacology, pharmacokinetics, dosing, and administration of dexrazoxane and those discussing clinical trials were selected. Data Extraction: Data were extracted and analyzed if the information was relevant and consistent. Studies were selected for review in the text on the basis of study design and clinical end points. Data Synthesis: Dexrazoxane is a chemoprotective agent developed to prevent cardiac tissue toxicity. Dexrazoxane exerts a cardioprotective effect with some clinically significant toxicities; it may also interfere with the antitumor activity of doxorubicin. Until there are sufficient data to support its use in first-line supportive care therapy, dexrazoxane should be reserved for use in patients responding to doxorubicin-based chemotherapy but who have risk factors for cardiac toxicity or have received a cumulative doxorubicin bolus dose of 300 mg/m2. Conclusions: The management of doxorubicin-induced cardiotoxicity has led to the development of supportive care drugs that specifically counteract the dose-limiting toxicities. Dexrazoxane may not completely eliminate the concern about doxorubicin-induced cardiotoxicity, but it may open new avenues for continuing doxorubicin-based chemotherapy.

Estradiol Valerate/Dienogest: A Novel Oral Contraceptive

2011 ◽  
Vol 45 (10) ◽  
pp. 1256-1261 ◽  
Author(s):  
Karen L Whalen ◽  
Renee Rose
Keyword(s):  
Oral Contraceptive ◽  
Oral Contraceptives ◽  
Ethinyl Estradiol ◽  
Data Extraction ◽  
Estradiol Valerate ◽  
Efficacy And Safety ◽  
Data Synthesis ◽  
Efficacy Trials ◽  
Study Selection ◽  
Pearl Index

Objective: To review the pharmacology, pharmacokinetics, efficacy, and safety of the new oral contraceptive estradiol valerate/dienogest. Data Sources: Searches of PubMed (1966-July 2011) and International Pharmaceutical Abstracts (1970-July 2011) were conducted using the key words estradiol valerate, dienogest, Natazia, and Olaira. Bibliographies of retrieved articles were reviewed to identify additional références. Study Selection and Data Extraction: All identified studies published in English and involving efficacy and safety of estradiol valerate/dienogest as an oral contraceptive were reviewed. Data Synthesis: Estradiol valerate/dienogest is a 4-phasic oral contraceptive approved for the prevention of pregnancy. The 4-phasic design allows for acceptable cycle control with this hormonal combination. In efficacy trials of estradiol valerate/dienogest in women aged 18–35 years, the Pearl Index ranged from 0.40 to 1.64, a range comparable to that of other combination oral contraceptives. The safety profile was also similar to that of other oral contraceptives, with headache, metrorrhagia, breast tenderness, nausea or vomiting, acne, and weight gain reported as the most common adverse effects. Menstrual bleeding patterns and cycle control with estradiol valerate/dienogest were comparable to those of a monophasic oral contraceptive containing ethinyl estradiol/levonorgestrel. Estradiol valerate/dienogest differs from other oral contraceptives in that il necessitates more stringent dosing guidelines for maximum contraceptive efficacy. New starts should be on the first day of menses only, and a back-up method of contraception is required for the first 9 days, as compared to 7 days with other oral contraceptives. Back-up contraception is usually required for any pill taken more than 12 hours later than scheduled. Conclusions: Estradiol valerate/dienogest is an effective oral contraceptive. Because it has more stringent start times and requires a longer duration of back-up contraception and stricter adherence, estradiol valerate/dienogest should be reserved for patients who are intolerant of other combination oral contraceptives.

Rifaximin: A New Treatment for Travelers' Diarrhea

2005 ◽  
Vol 39 (2) ◽  
pp. 284-289 ◽  
Author(s):  
Amy L Pakyz
Keyword(s):  
Adverse Effects ◽  
Drug Interactions ◽  
English Language ◽  
Data Extraction ◽  
Cross Resistance ◽  
Double Blind ◽  
Data Synthesis ◽  
Medline Search ◽  
Study Selection ◽  
New Treatment

OBJECTIVE: To review the pharmacology, pharmacokinetics, clinical efficacy, adverse effects, drug interactions and precautions, and dosing recommendations of rifaximin, a new nonabsorbed antimicrobial agent for travelers' diarrhea. DATA SOURCES: A MEDLINE search (1966–July 2004) was conducted to extract human and animal research data in the English language on rifaximin. STUDY SELECTION AND DATA EXTRACTION: Randomized, double-blind, placebo-controlled trials were reviewed and included to evaluate the efficacy of rifaximin in the treatment of travelers' diarrhea. DATA SYNTHESIS: Rifaximin is approved for the treatment of travelers' diarrhea in patients ≥12 years of age with diarrhea caused by noninvasive strains of Escherichia coli. Rifaximin was superior to placebo and trimethoprim/sulfamethoxazole and equivalent to ciprofloxacin in the primary clinical endpoint of the time to the last unformed stool passed. CONCLUSIONS: Rifaximin is a viable alternative to ciprofloxacin for the treatment of travelers' diarrhea. As rifaximin is not systemically absorbed, it offers the advantage of leading to the development of less resistance compared with systemically absorbed antibiotics, in addition to fewer systemic adverse effects and drug interactions. However, the potential for cross-resistance between rifaximin and rifampin, as well as with other classes of antibiotics, is of concern and needs to be elucidated.

Safety of Selegiline with Cold Medications

2003 ◽  
Vol 37 (3) ◽  
pp. 438-441 ◽  
Author(s):  
Jeena E Jacob ◽  
Mary L Wagner ◽  
Jacob I Sage
Keyword(s):  
Adverse Events ◽  
Drug Interactions ◽  
Interaction Potential ◽  
Data Sources ◽  
Data Synthesis ◽  
Search Terms ◽  
Clinical Literature

OBJECTIVE: To evaluate the safety of the coadministration of selegiline with cold medications. DATA SOURCES: Clinical literature accessed through MEDLINE(1965–September 2002), IPA database, and Drug-Reax System. The following search terms were used: selegiline, pseudoephedrine, dextromethorphan, MAOI, and drug interactions. Somerset Pharmaceuticals, the marketers of Eldepryl (selegiline HCI), were also contacted. DATA SYNTHESIS: Despite a warning against its concomitant use with pseudoephedrine and dextromethorphan, interactions with selegiline have not been reported. However, there have been reports of patients experiencing adverse events with related agents. CONCLUSIONS: Patients taking selegiline should try to avoid pseudoephedrine and dextromethorphan or use drugs without interaction potential. If selegiline is used with these medications, watch for adverse events or replace selegiline with another drug.

Isoniazid-Associated Psychosis: Case Report and Review of the Literature

1993 ◽  
Vol 27 (2) ◽  
pp. 167-170 ◽  
Author(s):  
Karen A. Pallone ◽  
Morton P. Goldman ◽  
Matthew A. Fuller
Keyword(s):  
Case Report ◽  
English Language ◽  
Case Reports ◽  
Data Extraction ◽  
Data Sources ◽  
Review Of The Literature ◽  
Data Synthesis ◽  
Medline Search ◽  
Study Selection ◽  
Language Literature

Objective To describe a case of isoniazid-associated psychosis and review the incidence of this adverse effect. Data Sources Information about the patient was obtained from the medical chart. A MEDLINE search of the English-language literature published from 1950 to 1992 was conducted and Index Medicus was manually searched for current information. Study Selection All case reports describing isoniazid-associated psychosis were reviewed. Data Extraction Studies were evaluated for the use of isoniazid, symptoms of psychosis, onset of symptoms, and dosage of isoniazid. Data Synthesis The case report is compared with others reported in the literature. The incidence of isoniazid-associated psychosis is rare. Conclusions The mechanism of isoniazid-associated psychosis is uncertain. It appears that isoniazid was associated with the psychosis evident in our patient and in the cases reviewed.

Changing Perspectives of Stress Gastritis Prophylaxis

1994 ◽  
Vol 28 (9) ◽  
pp. 1073-1085 ◽  
Author(s):  
Maureen A. Smythe ◽  
Barbara J. Zarowitz
Keyword(s):  
Risk Factors ◽  
Critically Ill ◽  
Data Extraction ◽  
Care Patient ◽  
Receptor Antagonists ◽  
Data Synthesis ◽  
Medline Search ◽  
Prophylactic Agent ◽  
Study Selection ◽  
Meta Analyses

OBJECTIVE: To present recent advances in stress gastritis prophylaxis in the critically ill and review considerations in selection of a prophylactic agent. DATA SOURCES: Information was obtained from MEDLINE search, reference lists from articles identified in search, and from review articles. STUDY SELECTION: Emphasis was placed on controlled trials conducted within the last 5 years. DATA EXTRACTION: All literature was assessed for methodology, results, and conclusions. Results of prospective, randomized trials, and meta-analyses are summarized. DATA SYNTHESIS: Histamine2-receptor antagonists, antacids, and sucralfate appear equally effective in preventing stress gastritis in the critically ill. A definitive cause–effect relationship between histamine2-receptor antagonists and increased incidence of nosocomial pneumonia has not yet been established. The indications for using a prophylactic agent and consideration in selecting an agent should include an evaluation of the following: Risk factors for gastritis including the type of intensive care patient, comparative efficacy, adverse effects, drug interactions, cost, and ease of administration. The least expensive, safest agent requiring minimal monitoring is sucralfate. Prevention of stress gastritis has never been shown to reduce morbidity or mortality significantly. CONCLUSIONS: Controversies still exist regarding the need to provide prophylaxis, the choice of an agent, and the relative importance of previously identified risk factors. Further well-designed studies are needed before consensus can be reached.

A Blast From the Past: Revival of Angiotensin II for Vasodilatory Shock

2018 ◽  
Vol 52 (9) ◽  
pp. 920-927 ◽  
Author(s):  
Brittany D. Bissell ◽  
Kelsey Browder ◽  
Matt McKenzie ◽  
Alexander H. Flannery
Keyword(s):  
Angiotensin Ii ◽  
Data Extraction ◽  
Peptide Hormone ◽  
Vasodilatory Shock ◽  
Vasoactive Agent ◽  
Data Synthesis ◽  
Medline Search ◽  
Study Selection ◽  
Significant Difference ◽  
Distributive Shock

Objective: To review and summarize data on angiotensin II (AT-II), approved by the Food and Drug Administration (FDA) in December 2017 to increase blood pressure in adults with septic or other distributive shock. Data Sources: A PubMed/MEDLINE search was conducted using the following terms: (angiotensin ii OR angiotensin 2) AND (shock) from 1966 to February 2018. Study Selection and Data Extraction: A total of 691 citations were reviewed with only relevant clinical data extracted. Data Synthesis: AT-II is a peptide hormone with a multitude of physiological effects—namely, vasoconstriction of venous and arterial smooth muscle. The priority approval granted by the FDA was secondary to a phase 3 study of patients receiving at least 0.2 µg/kg/min of norepinephrine or equivalent for vasodilatory shock. Compared with placebo, AT-II had a significantly higher rate of response, defined as a mean arterial pressure of 75 mm Hg or an increase of 10 mm Hg. No significant difference was found in death by day 28. Conclusions: AT-II is a newly available vasoactive agent with a novel mechanism for the treatment of distributive shock. Further research is needed to define its exact role in therapy of shock states, identify patients most likely to benefit, and further study its safety profile in critical illness.

Thalidomide Dosing in Patients with Relapsed or Refractory Multiple Myeloma

2003 ◽  
Vol 37 (4) ◽  
pp. 571-576 ◽  
Author(s):  
Jennifer L Thompson ◽  
Lea Ann Hansen
Keyword(s):  
Multiple Myeloma ◽  
Data Synthesis ◽  
Medline Search ◽  
Prognostic Features ◽  
Refractory Multiple Myeloma ◽  
Search Terms ◽  
Promising Agent ◽  
Pertinent Data ◽  
Reasonable Approach ◽  
Gradual Dose

OBJECTIVE: To evaluate the literature regarding the dosing of thalidomide in multiple myeloma. DATA SOURCES: A MEDLINE search (1990–February 2003) using the search terms thalidomide and multiple myeloma was performed to identify clinical trials and abstracts. Identified literature was then cross-referenced for further pertinent data. DATA SYNTHESIS: Patients with relapsed or refractory multiple myeloma have few therapeutic options. Thalidomide is a promising agent, although many dose-related issues are still in question. Starting doses studied ranged from 50 to 200 mg/d, usually given at bedtime. Gradual dose escalation up to 800 mg/d has been studied, with some evidence of improved outcome with doses of 400–600 mg/d, while thalidomide appears to be best tolerated at doses ≤400 mg/d. CONCLUSIONS: A reasonable approach for use of thalidomide in multiple myeloma is to initiate therapy at 50–100 mg nightly and escalate every 2 weeks in 50-to 100-mg increments as tolerated. Efforts should be made to titrate the dose to 400–600 mg/d, especially in patients with poor prognostic features. Efficacy should be assessed at approximately 8 weeks and the dose maintained if desired response is achieved.

Intrapulmonary Percussive Ventilation as a Lung Recruitment Strategy in Brain-Dead Organ Donors

2016 ◽  
Vol 27 (1) ◽  
pp. 84-89 ◽  
Author(s):  
Geralyn Lerg ◽  
Linda Shanta
Keyword(s):  
Data Extraction ◽  
Chest Physiotherapy ◽  
Lung Recruitment ◽  
Recruitment Strategy ◽  
Organ Donors ◽  
Safe Alternative ◽  
Data Synthesis ◽  
Search Terms ◽  
Study Selection ◽  
Donor Population

Objective: To determine the strength of the evidence evaluating the effectiveness of intrapulmonary percussive ventilation (IPV) as a safe alternative or adjunctive therapy to traditional chest physiotherapy (CPT) among potential organ donors. Data Sources: Literature search conducted from February 2015 to November 2015 using PubMed, Cumulative Index of Nursing and Allied Health Literature, Scopus, and bibliographies of pertinent articles. Search Terms: Intrapulmonary percussive ventilation, chest physiotherapy, chest wall oscillation, organ donors, and ventilation. Study Selection: Articles in English from 1994 to present directly compared IPV to CPT or conventional (no) therapy. Data Extraction: Association of Critical-Care Nurses Levels of Evidence was used to determine the strength of evidence. Level B and level C articles were reviewed. Data Synthesis: No studies were found using IPV in the donor population. Results from studies using IPV in other populations indicated IPV had no adverse effects, improved sputum clearance and oxygenation, and reduced atelectasis and pneumonia in patients with artificial airways. Conclusion: Intrapulmonary percussive ventilation may be a safe and effective alternative or adjunctive to CPT therapy and improve the number of lungs available for transplantation. Clinical research is essential to determine the effectiveness of this therapy for lung recruitment in the donor population.

Drug-Induced Yawning—A Review

2011 ◽  
Vol 45 (10) ◽  
pp. 1297-1301 ◽  
Author(s):  
Edna Patatanian ◽  
Nancy Toedter Williams
Keyword(s):  
Case Reports ◽  
Data Extraction ◽  
Background Information ◽  
Drug Induced ◽  
Data Synthesis ◽  
Search Terms ◽  
Dopaminergic Agents ◽  
Study Selection ◽  
Physiologic Function ◽  
Induction Agents

Objective: To review the current literature on drug-induced yawning. Data Sources: Literature was accessed through MEDLINE/PubMed (1996-July 2011), International Pharmaceutical Abstracts (1997-July 2011), and EMBASE, using the search terms yawning, drug-induced yawning, and adverse drug reactions. Study Selection and Data Extraction: Relevant clinical trials and case reports were selected and included to present background information. Bibliographies of all relevant articles were reviewed for additional citations. Data Synthesis: Yawning is a common stereotype behavior with unknown physiologic function that occurs in most vertebrates and humans as early as 15 weeks of intrauterine life. Yawning Is under the control of several neurotransmitters and neuropeptides, Including dopamine, serotonin, oxytocin, and acetylcholine. Among drugs, antidepressants, opioids, dopaminergic agents, benzodiazepines, and induction agents are the main pharmacologic classes associated with yawning. Conclusions: Yawning is rarely a serious adverse reaction and is not frequently listed in the drug summary. Most available data are based on case reports, small studies, and older literature. Clinicians should be aware of the agents commonly triggering this behavior.

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