Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 13 de 13
Filter
1.
J Altern Complement Med ; 27(9): 796-802, 2021 Sep.
Article in English | MEDLINE | ID: mdl-33979529

ABSTRACT

Objective: To characterize dietary supplements marketed online as "ephedra-containing or ephedra-like products" for weight management and to assess labeling/marketing compliance with the ban on the sale of ephedrine alkaloids. Materials and Methods: This cross-sectional study assessed websites selling ephedra-like supplements using the search term "buy ephedra." For each website, the first three featured products were characterized by evaluating the label for (1) Ephedra sp. or its alkaloid content, (2) serving size, (3) other ingredients, (4) directions, (5) side effects, (6) reported interactions, (7) recommendation to consult a health care provider, (8) recommendation to use with diet and exercise, and (9) Food and Drug Administration (FDA) disclaimer. Results: Thirty-six (71%) of the first 51 websites evaluated sold at least one weight loss product. A total of 105 products were assessed, 93 had labeling with 10 (11%) in possible violation of the ephedra ban. Five were labeled as containing ephedrine or ephedrine hydrochloride, two reported containing ephedrine alkaloids, and two reported containing unidentified Ephedra sp. not formulated as an extract; one reported containing Ma Huang. Sixty-seven (72%) products listed caffeine with a daily serving size averaging 400 mg. Other ingredients with stimulant properties include green tea, yohimbe, and phenylethylamine. Conclusions: Nearly 20% of websites sold weight loss products that potentially violated the 2004 ban of ephedra alkaloids. Ephedrine, unidentified Ephedra sp. not formulated as an extract, and Ma Huang were labeled as present in 11% of products evaluated. Incomplete reporting of adverse effects and drug interactions was common.


Subject(s)
Ephedra , Cross-Sectional Studies , Dietary Supplements , Humans , Marketing , United States , United States Food and Drug Administration , Weight Loss
2.
Tob Control ; 29(e1): e4-e9, 2020 12.
Article in English | MEDLINE | ID: mdl-32123138

ABSTRACT

BACKGROUND: The aim of this study was to characterise all 2018 Food and Drug Administration (FDA) warning letters specific to e-cigarette products and to evaluate whether online retailers complied with FDA requested actions. METHODS: All 2018 FDA e-cigarette warning letters issued by the Center for Tobacco Products to online retailers were reviewed and characterised. Date of issuance, name, type, and location of the retailer, and violation type were recorded. Retailer websites were rechecked a minimum of 30 days after the issuance of the warning letter to assess compliance with enforcement actions. RESULTS: One hundred and thirteen of 124 letters met the inclusion criteria; one duplicate letter and 10 letters unrelated to e-cigarettes were excluded. One manufacturer was cited for associating their e-liquid with prescription drugs, and when analysed, the e-liquid was found to contain phosphodiesterase inhibitors. A majority of violations, 98.2% (111/113), pertained to the sales of an e-cigarette product to a minor and/or use of marketing that appeals to children. The majority of websites (63.7%, 72/113) resolved all violations. However, 19.5% (22/113) inactivated their website, and 16.8% (19/113) did not fully correct all violations. CONCLUSIONS: Sales of e-cigarette products to minors and the purposeful marketing of e-liquids in a manner that appeals to children and adolescents continues to be problematic. While the warning letters were successful in getting a majority of online retailers to correct the stated violation, many sold other products that would be considered a violation of marketing to minors. The appearance of e-liquids that contain prescription medications is also alarming. Comprehensive and continued enforcement of online e-cigarette retailers is urgently needed.


Subject(s)
Electronic Nicotine Delivery Systems , Tobacco Products , Adolescent , Child , Commerce , Humans , Marketing , United States , United States Food and Drug Administration
3.
Ann Emerg Med ; 58(2): 192-9, 2011 Aug.
Article in English | MEDLINE | ID: mdl-21481971

ABSTRACT

STUDY OBJECTIVE: To characterize warfarin management in the emergency department (ED). METHODS: This was a retrospective, cross-sectional, observational study of patients who were receiving warfarin and were discharged from a tertiary care, academic urban ED between June and August 2007. We abstracted patient demographics, presenting complaint, international normalized ratio (INR) if tested, indication for warfarin if documented, new medications administered or prescribed in the ED, and discharge instructions. Presenting complaints were categorized according to whether they were warfarin-related and concerning for thrombosis or bleeding. The primary outcome measure was the prevalence of warfarin therapy. The secondary outcome measures were frequency with which ED providers obtained an INR result, response to nontherapeutic results, administration or prescription of interacting medications, and percentage of patients receiving recommendations for anticoagulation follow-up. RESULTS: Two percent (111/7,195) of all patients presenting to and discharged from the ED during the study period were found to be receiving warfarin. Seventy-one percent (79/111) had an INR checked. Nontherapeutic INRs were recorded for 49% (39/79) of patients; ED providers intervened to address these results in 21% (8/39) of cases. Seventy-one percent (5/7) of patients with a supratherapeutic INR received an intervention compared with 9% (3/32) of patients with a subtherapeutic INR. Seventeen percent (19/111) and 13% (14/111) of patients received or were prescribed potentially interacting medications, respectively. Recommendations for specific anticoagulation follow-up were documented for 19% (21/111) of all patients. CONCLUSION: Patients receiving warfarin frequently present to the ED and often have nontherapeutic INRs. Potential areas for improvement in ED management include greater attention to subtherapeutic INRs, interacting medications, and discharge planning.


Subject(s)
Anticoagulants/therapeutic use , Emergency Service, Hospital , Warfarin/therapeutic use , Aged , Anticoagulants/administration & dosage , Anticoagulants/adverse effects , Cross-Sectional Studies , Emergency Service, Hospital/statistics & numerical data , Female , Hemorrhage/chemically induced , Humans , Male , Middle Aged , Patient Discharge , Retrospective Studies , Thrombosis/chemically induced , Treatment Outcome , Warfarin/administration & dosage , Warfarin/adverse effects
4.
Ann Pharmacother ; 41(10): 1625-31, 2007 Oct.
Article in English | MEDLINE | ID: mdl-17848423

ABSTRACT

BACKGROUND: Asthma is a major health problem and the most frequent cause of chronic illness and emergency department (ED) visits in children. Limited data examining the ED management of pediatric asthma within university teaching hospitals across the US exist. OBJECTIVE: To compare the ED management of children (aged 1-17 y) with asthma at a university teaching hospital using National Asthma Education and Prevention Program (NAEPP) guidelines. METHODS: All cases of pediatric asthma that presented to the University of California, San Francisco, Medical Center ED between October 1, 2003, and October 31, 2004, were included. Patients who required hospital admission were excluded. Data pertaining to patient demographics, primary diagnosis, pharmacologic management, diagnostic tests performed, and follow-up plans were abstracted and compared with NAEPP guidelines issued in 1997 and updated topics released in 2002. RESULTS: A total of 141 cases were identified. Mean patient age was 5.8 years. Most (61.7%) patients were male and of African American ethnicity (31.9%). Asthma severity was typically mild (66.7%) or moderate (29.1%). In persons at least 6 years of age (n = 58), peak expiratory flow rate (PEFR) was performed in 25.9% of cases. Pulse oximetry, however, was always performed. Based on NAEPP guidelines, beta-agonists and corticosteroids should have been used, but were not, in 2.8% and 31.9% of cases, respectively. At discharge, no corticosteroid prescription was given in 40.4% of the cases, no written action plan was prepared in 80.1% of the cases, no formal device training was administered in 67.3% of cases, and no peak flow meter was provided for persons at least 6 years of age in 50.0% of cases. CONCLUSIONS: NAEPP guidelines were met in all patients regarding pulse oximetry and in most patients with respect to the use of beta-agonists. Improvements could be made, however, in the use of corticosteroids in the ED; in performing PEFR measurements for persons at least 6 years of age upon arrival; and in providing formal device training, a written action plan, prescriptions for steroids, and peak flow meters at discharge.


Subject(s)
Asthma/therapy , Emergency Service, Hospital , Hospitals, Teaching/methods , Adolescent , Asthma/epidemiology , Child , Child, Preschool , Disease Management , Emergency Service, Hospital/trends , Female , Hospitals, Teaching/trends , Hospitals, University/trends , Humans , Infant , Male , Patient Discharge/trends , Retrospective Studies
5.
J Herb Pharmacother ; 6(2): 1-19, 2006.
Article in English | MEDLINE | ID: mdl-17182481

ABSTRACT

OBJECTIVE: To sample dietary supplements (DS) labeled as ephedra-free to evaluate whether products met their labeling claim. METHODS: One control DS product containing ephedra alkaloids and 29 DS labeled as ephedra-free were purchased from various retail locations in San Francisco. All products were sent to the California Department of Health Services (CDHS), Food and Drug Laboratory for content and quantity analysis. All laboratory personnel were blinded to product names and labeled contents. All DS products were screened for the presence of undeclared drugs, ephedra alkaloids, and heavy metals including lead, arsenic, cadmium and mercury. All products were also evaluated for compliance with the labeling requirements of the Dietary Supplement Health and Education Act (DSHEA) of 1994. RESULTS: None of the DS labeled as ephedra-free tested positive for the presence of ephedra alkaloids; as expected, the control product did test positive. Heavy metals were detected in three ephedra-free labeled DS products. All 24 products that tested positive for caffeine listed caffeine or a botanical source of caffeine on the DS label. All but two products were in compliance with DS labeling as required by DSHEA. CONCLUSIONS: This study demonstrates that manufacturers met their labeling claims for ephedra-free products. Special attention should be given to the presence of heavy metals and other drugs like caffeine, synephrine, and botanical sources of caffeine as these ingredients have replaced ephedra.


Subject(s)
Anti-Obesity Agents/analysis , Dietary Supplements/analysis , Drugs, Chinese Herbal/analysis , Phytotherapy , Alkaloids/analysis , Caffeine/analysis , Drug Labeling/standards , Drug and Narcotic Control , Ephedrine/analysis , Humans , Mass Spectrometry , Metals, Heavy/analysis , Phytotherapy/standards , Plant Preparations/chemistry , San Francisco
6.
J Midwifery Womens Health ; 51(6): 402-9, 2006.
Article in English | MEDLINE | ID: mdl-17081929

ABSTRACT

Consumers frequently use herbs and dietary supplements to treat chronic conditions that are poorly responsive to prescription drugs or when prescription drugs carry a high side effect burden. Women may use herbs and supplements for chronic gynecologic conditions, such as menopause, premenstrual syndrome, dysmenorrhea, cyclic mastalgia, and infertility. This review is an evidence-based evaluation of herbs and supplements for these conditions. Therapies that carry a higher level of support from randomized controlled trial evidence include black cohosh for menopause; vitamins B(1) and E for dysmenorrhea; calcium, vitamin B(6), and chasteberry for premenstrual syndrome; and chasteberry for cyclic mastalgia. There were too few trials involving herbs and supplements in infertility to warrant a solid recommendation, but chasteberry, antioxidants, and Fertility Blend have some preliminary support. Midwives may want to consider these alternatives in addition to more traditional treatment options when meeting with patients.


Subject(s)
Dietary Supplements/statistics & numerical data , Health Knowledge, Attitudes, Practice , Midwifery/organization & administration , Phytotherapy/statistics & numerical data , Plants, Medicinal , Women's Health , Dysmenorrhea/therapy , Evidence-Based Medicine , Female , Humans , Infertility, Female/therapy , Life Style , Menopause , Menorrhagia/therapy , Menstruation Disturbances/therapy , Premenstrual Syndrome/therapy , Randomized Controlled Trials as Topic
7.
Ann Pharmacother ; 39(10): 1634-9, 2005 Oct.
Article in English | MEDLINE | ID: mdl-16159994

ABSTRACT

BACKGROUND: The Internet is a popular tool for marketing and purchasing herbal dietary supplements (DS). Various Web sites sell these products purely for recreational use. OBJECTIVE: To describe the content of Web sites that advertise and market herbal DS for recreational use (ie, for the purpose of altering mood/behavior/or perception, "getting high," or as a substitute for a drug of abuse). METHODS: Four major search engines and the search terms "buy herbal high" and "buy legal high" were used to identify Web sites selling herbal DS for recreational use. Web sites were evaluated for their country of origin and for compliance with the Dietary Supplement Health and Education Act (DSHEA). Products were evaluated for their ingredient lists, effect claims, comparisons with illicit drugs, adverse effects, drug interactions, and contraindications. RESULTS: Twenty-eight unique Web sites with 119 products were evaluated. Most sites were in the US (54%) and were in compliance with DSHEA. Forty-seven percent of the products were likened to illicit drugs, typically marijuana (48%) or 3-,4-methylene dioxyamphetamine (Ecstasy; 23%). The most common product ingredients were ephedra alkaloids (27%), Salvia divinorum (17%), kava (10%), guarana (10%), Acorus calamus (10%), and damiana (10%). Effect claims frequently involved the products' use as a hallucinogen (51%) or stimulant (39%). Sixty-four percent of the sites mentioned adverse effects, and 54% mentioned drug interactions. CONCLUSIONS: This study demonstrates that herbal DS are being marketed for use as legal alternatives to illicit drugs of abuse. Healthcare professionals need to be aware of this trend and the products that are involved.


Subject(s)
Dietary Supplements/supply & distribution , Illicit Drugs/supply & distribution , Internet , Marketing/methods , Plant Preparations/supply & distribution , Advertising , Drug Interactions , Humans , Illicit Drugs/adverse effects , Illicit Drugs/pharmacology , Marketing/standards , Marketing/trends , Patient Education as Topic , Plant Preparations/adverse effects , Plant Preparations/pharmacology
8.
Am J Health Syst Pharm ; 62(14): 1476-82, 2005 Jul 15.
Article in English | MEDLINE | ID: mdl-15998927

ABSTRACT

PURPOSE: Dietary supplement (DS)-related adverse events (AEs) reported to the California Poison Control System (CPCS) were studied. METHODS: The CPCS database was used to search for all telephone calls from consumers concerning DS-related AEs received during the six-month period between April and September 2002. The calls were characterized according to the substance involved, the caller's age (adult or pediatric), and the type of ingestion (accidental or intentional). Each exposure in which symptoms were reported was categorized as involving an AE. Each AE was assessed for severity and causality. RESULTS: Data on a total of 1183 telephone calls were retrieved, of which 828 calls (70%) met the study's inclusion criteria. DS exposure occurred in 389 adults (47%) and 438 children (53%). DS ingestion was accidental in 360 patients (43%) and intentional in 467 patients (56%). Exposure resulted in an AE in 480 patients (58%). AEs were reported in 353 patients (74%) who ingested products containing ephedra; other exposures frequently involved zinc, kava, creatine, and valerian. AEs were classified as moderate in 198 patients (41%) who ingested a DS and as severe in 40 patients (8%). One patient had a fatal reaction. Among the 480 AEs in DS-exposed consumers, the DS was classified as the definite cause of 1 AE (<1%) and a probable cause of 237 (49.4%). The most frequently reported AE symptoms were increased heart rate (45%), agitation (30%), vomiting (30%), and nausea (15%). CONCLUSION: A majority of DS-related AEs reported by consumers to CPCS involved ephedra-containing products.


Subject(s)
Adverse Drug Reaction Reporting Systems , Dietary Supplements/adverse effects , Poison Control Centers , Adult , California/epidemiology , Child , Data Collection/methods , Dietary Supplements/classification , Dietary Supplements/poisoning , Drugs, Chinese Herbal/adverse effects , Drugs, Chinese Herbal/poisoning , Ephedra , Female , Humans , Male , Plants, Medicinal , Retrospective Studies
10.
J Am Board Fam Pract ; 16(1): 47-57, 2003.
Article in English | MEDLINE | ID: mdl-12583650

ABSTRACT

BACKGROUND: Many persons use botanicals and dietary supplements for chronic conditions that do not respond to traditional Western medications. Tricyclic antidepressants, a common treatment option for diabetic neuropathy, can have many side effects and are a poor choice in certain populations (eg, the elderly). As such, patients might turn to botanicals and dietary supplements, not realizing that these products are not well regulated. METHODS: This article reviews botanicals and dietary supplements that have been involved in randomized controlled trials (RCTs) for diabetic neuropathy. We searched MEDLINE for English-language literature dating from 1966 to April 2001 using the following subject headings: (1) diabetes and botanical, herb, and supplement, (2) neuropathy and botanical, herb, and supplement, and (3) diabetic neuropathy and botanical, herb, and supplement. RESULTS: Our search found agents that might improve symptoms of neuropathy (eg, evening primrose oil, alpha-lipoic acid, capsaicin) without affecting glucose control. Botanicals and dietary supplements involved in only one RCT or associated with little clinical benefit were reviewed in brief. CONCLUSIONS: Evening primrose oil, alpha-lipoic acid, and capsaicin have received the greatest attention for their use in diabetic neuropathy, but further studies are needed to confirm their efficacy. Patients using these products need to be informed of potential drug interactions and side effects.


Subject(s)
Diabetic Neuropathies/drug therapy , Dietary Supplements , Phytotherapy , Antioxidants/therapeutic use , Capsaicin/pharmacology , Capsaicin/therapeutic use , Dietary Fats, Unsaturated/pharmacology , Dietary Fats, Unsaturated/therapeutic use , Fatty Acids, Essential/pharmacology , Fatty Acids, Essential/therapeutic use , Humans , Linoleic Acids , Oenothera biennis , Plant Oils , Thioctic Acid/pharmacology , Thioctic Acid/therapeutic use , Treatment Outcome , gamma-Linolenic Acid
11.
Menopause ; 9(1): 72-8, 2002.
Article in English | MEDLINE | ID: mdl-11791089

ABSTRACT

OBJECTIVE: This study examined the usage patterns of dietary supplements during menopause, providing information about type, prevalence, and rationale for use. METHODS: A survey instrument was distributed to self-identified peri- or postmenopausal women at a San Francisco women's health conference in March 2000. RESULTS: Of the 100 eligible women, 29% used hormone replacement therapy (HRT) alone, 16% used HRT with dietary supplements (Combo group), 32% used dietary supplements alone, and 13% used no product or used supplements excluded in this survey. The most common dietary supplements were soy (29%), ginkgo biloba (16%), and black cohosh (10%). Only 54% of women using dietary supplements reported such usage to their primary care providers. Women using HRT alone reported relief of hot flashes significantly more often than those using dietary supplements alone (63% vs. 30%; p = 0.016). Women using combination therapy reported enhanced improvement in vaginal dryness, libido, and mood compared with those using HRT alone. Perceived quality of life and overall control of menopausal symptoms were highest among women using dietary supplements alone and women using combination therapy, respectively. Satisfaction with menopausal counseling from a primary care provider was significantly greater in women receiving HRT alone ( p = 0.02) and combination therapy ( p = 0.006) compared with women receiving dietary supplements alone. CONCLUSIONS: Dietary supplements were frequently used during menopause. Combined use of dietary supplements and HRT seemed to be associated with enhanced relief of certain menopausal symptoms. Women using dietary supplements alone seemed particularly dissatisfied with the menopausal counseling provided by a primary care provider.


Subject(s)
Complementary Therapies/statistics & numerical data , Dietary Supplements/statistics & numerical data , Menopause , Aged , California/epidemiology , Congresses as Topic/statistics & numerical data , Drug Therapy, Combination , Estrogen Replacement Therapy/statistics & numerical data , Female , Humans , Middle Aged , Patient Satisfaction/statistics & numerical data , Physicians, Family/statistics & numerical data , Professional-Patient Relations , Quality of Health Care/statistics & numerical data , Quality of Life , Treatment Outcome
12.
J Herb Pharmacother ; 2(3): 1-11, 2002.
Article in English | MEDLINE | ID: mdl-15277085

ABSTRACT

OBJECTIVE: The purpose of this study was to (1) characterize the population who uses and reports adverse events to the California Poison Control System (CPCS) related to herbal remedies (HR) and dietary supplements (DS), (2) to assess whether adverse drug reactions (ADRs) occur within the usual recommended dosing, and (3) to describe the nature of adverse events. METHODS: A retrospective search of HR and DS related calls was conducted between January 1997 and June 1998. Data collection included the demographics of callers, types of exposures, substances involved, amounts ingested and severity. RESULTS: Of the 918 HR and DS calls received, 259 (28.2%) were drug information queries, 599 (65.3%) were exposures, and 60 (6.5%) were excluded. Exposures occurred most often in pediatric patients 324 (54.1%), but exposures resulting in ADRs occurred most often in adults at recommended doses. There were 233 ADRs, of which 67 (28.8%) occurred in children. The most common products involved in ADRs were zinc (38.2%), echinacea (7.7%), chromium picolinate (6.4%) and witch hazel (6%). Severity of ADRs required no treatment or was minor in a majority of cases, but may have contributed to hospitalization in three. CONCLUSION: Children were involved in a majority of exposure calls to the CPCS involving HR and DS. Adults, however, were more likely to develop an ADR from these products due to intentional exposure. Overall, the ADRs caused by HR and DS were mild, could be managed at home and rarely resulted in a severe outcome or other sequelae. Products involved in ADRs were consistent with the most common HR and DS products used by adult U.S. consumers.

13.
J Herb Pharmacother ; 2(1): 71-85, 2002.
Article in English | MEDLINE | ID: mdl-15277109

ABSTRACT

Horse chestnut seed extract (HCSE) is widely used in Europe for the management of chronic venous insufficiency (CVI). Although traditionally recommended for a variety of medical conditions, CVI is the only indication for which there is strong supportive scientific evidence. Review of the literature reveals 14 randomized controlled trials, of which seven are methodologically of high quality, albeit limited by small sample sizes and short durations. These studies support the superiority of HCSE over placebo, and suggest equivalence to compression stockings and to oral oxerutins. In the future, a longer and adequately powered randomized trial is warranted to compare HCSE to standard of care, and to further assess safety and long-term efficacy. There are no data to suggest that horse chestnut flower, raw seed, branch bark, or leaf are effective for any indication, and it is recommended that these products not be used, as they are known to be toxic when ingested.

SELECTION OF CITATIONS
SEARCH DETAIL
...