Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0018681 (headache)
 56,091 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The safety and tolerability of lisinopril (1.25-160 mg daily) were assessed in 3,270 patients (2,688 hypertensives and 582 patients with congestive heart failure (CHF] and 280 healthy subjects. The duration of therapy ranged from a single dose to 43 months; 438 patients received lisinopril for at least 12 months (mean 20 months). In the hypertensive population, the most frequent adverse events reported were headache, dizziness, cough, nausea, diarrhoea and fatigue, although not all of these events were thought to be related to lisinopril; 6.1% discontinued lisinopril due to adverse clinical events, most commonly cough and nausea. Twelve hypertensive patients died (0.45%), but most of these were not receiving lisinopril at the time of death and none was considered to be drug-related. In CHF patients, the most frequently reported adverse events were dizziness, dyspnoea, diarrhoea, hypotension and fatigue. Again, not all of these reports were considered to be drug-related. Therapy was withdrawn in 9.6% of patients--hypotension, dizziness, diarrhoea and rash being the most frequent reasons. Fifty-three CHF patients died (9.1%) and in three cases death was considered to be related to lisinopril therapy. Hypotension, orthostatic effects or dizziness following the initial dose of lisinopril occurred infrequently (in 1.3% of the hypertensive group, including those receiving hydrochlorothiazide, and in 4.8% of CHF patients). Changes in laboratory parameters were generally minor and seldom resulted in discontinuation of therapy. Long-term treatment of hypertension and CHF with lisinopril for at least 3 years confirms that the drug is well tolerated. Overall, the side-effect profile is very similar to that of other ACE inhibitors with regard to class-specific effects. However, taste disturbance was rarely observed.
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PMID:Clinical experience with lisinopril. Observations on safety and tolerability. 255 Jun 41

Six patients with terminal renal failure were subjected to a comparative assessment of the effects of acetate and bicarbonate dialyses on acid-base and gas composition of the blood as well as on the tolerance to the procedures conducted. It is shown that the cross-over of the patients to bicarbonate dialysis made it possible to appreciably reduce the number of side effects. The rate of hypotonia and muscular convulsions reduced by 50%, headache by 30%, nausea and vomiting practically disappeared. The use of the bicarbonate-containing dialysing solution prevented hypoxemia while acidosis correction was more adequate.
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PMID:[Use of bicarbonate dialysis in patients with terminal renal failure]. 279 28

A study was conducted in Ibadan, Nigeria over a period of 11 years, 1 January 1976 to 31 December 1986, on 810 patients who agreed to use depo-medro progesterone acetate (DMPA) for contraception. DMPA is a long-acting injectable contraceptive agent which provides protection over a period of time. It is given on a 3-monthly basis, and is thought to be an ideal contraceptive agent for women who have a poor compliance with taking oral contraceptives or do not wish to run the risk of using an intrauterine device. The women's medical histories were recorded and each of the women were thoroughly examined; women with hypertension, diabetes mellitus, positive cervical cytology, or irregular menstrual patterns were excluded from the study. The women were given 3-monthly intramuscular injections, and at each visit all side-effects reported were recorded. If the patient decided to discontinue use, the reasons were also noted and recorded. The results of the study are as follows. 490 (60.5%) of the women had protection for between 3 months and 12 months; 230 (28.4%) had protection for 13-24 months; while only 90 (11.1%) had protection for 25-33 months. Side effects noted were amenorrhoea (36.3%), weight gain (15.8%) and loss (10.6%) abnormal bleeding patterns (12.7%), and minor symptoms such as headaches (2.5%), dizziness (1.5%) and palpitations (1.1%). Reasons for discontinuation included amenorrhoea (16.2%), abnormal bleeding habits, (7%), hypertension (2.2%), and/or the desire to get pregnant (2%). Further discussion is given to the use of DMPA as an enhancement for lactation and an effective option to oral contraceptives.
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PMID:Experience with the use of depo-medroxyprogesterone acetate in a Nigerian population. 285 67

A comparative, controlled, open hypertension study using the direct vasodilator endralazine and the ACE-inhibitor captopril in combined therapy for severe and moderately severe hypertension is described. Both vasodilators cause an approximately 20% reduction in supine and upright blood pressure. Extreme side effects such as hematological alterations, autoimmune states or uncontrollable water retention were not observed. Subjective symptoms, particularly severe headaches, were especially evident after endralazine use. This side effect may possibly be eliminated by gradual titration over several weeks.
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PMID:[Antihypertensive pharmacotherapy with the vasodilators captopril and endralazine]. 286 3

A randomised double-blind study was conducted to compare the efficacy of roxatidine acetate 75 mg twice daily with ranitidine 150 mg twice daily in 308 patients with endoscopically confirmed uncomplicated duodenal ulcers. After 6 weeks of treatment ulcer healing was found in 93.5% of the roxatidine acetate group and 89.2% of the ranitidine group, with no significant differences between treatment groups. The relief of day and night-time epigastric pain assessed at clinic visits or on diary cards by patients was comparable for both treatment groups, as was the consumption of antacid tablets for relief of symptoms of dyspepsia. There were no significant differences in the healing rates of smokers and non-smokers for either roxatidine acetate or ranitidine treatment, and no clinically significant alterations in laboratory values. Eight patients in the roxatidine acetate group and 1 in the ranitidine group complained of mild side effects, which included diarrhoea, constipation and headache. One patient on roxatidine acetate withdrew from treatment because of a mild skin rash. The results confirm that roxatidine acetate is a safe and effective treatment for duodenal ulcer disease.
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PMID:A comparison of roxatidine acetate and ranitidine in duodenal ulcer healing. 290 55

To test the value of dexamethasone acetate for ameliorating acute mountain sickness (AMS), we conducted a double-blind, randomized study that compared the effects of 4 mg of dexamethasone acetate or a placebo (given every six hours for six doses beginning at the time of exposure) at 2700 and 2050 m. Study subjects, who were recruited from health professionals who attended continuing medical education programs at ski resorts in the Rocky Mountains, were classified as having AMS when they reported three or more of the five usual symptoms (headache, insomnia, dyspnea, anorexia, and/or fatigue) on a single day. All symptoms with an intensity of at least grade 2 (moderate) out of 5 were analyzed. At 2700 m, there was a 50% decrease in the mean AMS symptom score in the dexamethasone group (0.94 +/- 1.11 vs 1.84 +/- 1.44 [mean +/- SD]) and the incidence of AMS was 20% of that in the control group (3/38 vs 14/35). At 2050 m, there was no difference between dexamethasone and a placebo in the mean AMS symptom score (1.52 +/- 1.50 vs 1.24 +/- 1.33) and the incidence of AMS (5/25 vs 4/25). Dexamethasone ameliorates the usual symptoms of AMS at 2700 m but not at 2050 m.
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PMID:Effects of dexamethasone on the incidence of acute mountain sickness at two intermediate altitudes. 291 Nov 70

28 patients with polycystic ovary syndrome were treated for 12 months with the new preparation SH B 209 AE, consisting of 0.035 mg of ethinyl estradiol and 2 mg of cyproterone acetate. This was the first clinical trial of estroprogestational therapy on a homogeneous sample of women with polycystic ovary syndrome. Endocrine findings indicated a significant decrease in all hormonal parameters, the invariableness of prolactinemia, a considerable increase in sex hormone binding globulin (SHBG) at the 6th treatment cycle examination, a continuous significant decrease in 17 beta E2 and androstenedione from the 6th to the 12th treatment cycles. In terms of clinical findings, there was a significant decline in the severity of acne, seborrhea, and hirsutism during drug administration. The menstrual cycle in the 28 study subjects remained under control during treatment, and there were no pregnancies. Side effects such as weight gain, nausea, headache, and changes in libido were not reported. Overall, the findings of this study suggest that administration of the new monophasic contraceptive association SH B 209 AE can normalize endocrine patterns in polycystic ovary syndrome and improve its androgenic symptomatology. The low content of estrogen, the changes in clinical and hormonal parameters, the low incidence of side effects, and the good control of the menstrual cycle provided by this treatment make SH B 209 AE deserving of more widespread application.
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PMID:A new association of ethinylestradiol (0.035 mg) cyproterone acetate (2 mg) in the therapy of polycystic ovary syndrome. 294 60

The chemistry, electrophysiology, pharmacokinetics, clinical use and efficacy, adverse effects, drug interactions, and dosage of encainide hydrochloride and flecainide acetate are reviewed. Encainide and flecainide are class 1c antiarrhythmic agents that slow myocardial conduction and mildly prolong the duration of repolarization. Both agents block anterograde conduction over accessory pathways and prolong the effective refractory period of the accessory pathway. Bioavailability of encainide ranges from 7% to 82%, whereas that of flecainide is 90% to 95%. Encainide is metabolized by the liver to two major active metabolites that are slowly eliminated in the urine. About 23% of flecainide's total body clearance is dependent on renal elimination, and drug excretion is slowed in patients with renal dysfunction, requiring dosage adjustments. Both agents are effective in the suppression and prevention of ventricular arrhythmias, including premature ventricular contractions and sustained and nonsustained ventricular tachycardia. These agents may also be valuable in controlling supraventricular arrhythmias. The most common adverse effects of both agents involve the central nervous system and include dizziness, blurred vision, and headache. The potential for proarrhythmic effects is a concern with these agents. The risk is greater in patients with more severe arrhythmias, poor ventricular function, or high serum concentrations of drug. The usual initial oral dosage of encainide hydrochloride is 25 mg three times a day, with a usual dosage range of 100-200 mg/day. Flecainide acetate should be initiated at 100 mg every 12 hours and may be increased up to 400 mg/day. Encainide and flecainide could become useful therapeutic options in the treatment of a variety of arrhythmias.
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PMID:Encainide hydrochloride and flecainide acetate: two class 1c antiarrhythmic agents. 311 76

Sixteen consecutive patients who had ventricular preexcitation complicated by atrial fibrillation or flutter were treated with intravenous flecainide acetate after treatment with as many as 5 unsuccessful trial regimens with other drugs. In 15 patients who had atrial fibrillation, the shortest RR interval during spontaneous episodes was 210 +/- 39 ms (mean +/- standard deviation), and the average ventricular rate was 208 +/- 37 beats/min. Intravenous flecainide prevented induction of atrial fibrillation in 4 of 9 patients and eliminated anterograde accessory pathway conduction in 9 of the 16 patients. In 5 patients whose atrial fibrillation remained inducible and who continued to have preexcitation, the shortest preexcited RR interval increased from 185 +/- 29 to 281 +/- 46 ms (p less than 0.01). Fourteen patients who had favorable responses to intravenous flecainide were given an oral regimen of the drug. Oral treatment was discontinued early because of proarrhythmic effects in 2 patients, and after 2 1/2 months because of headaches in 1 patient. Eleven patients, 5 receiving concomitant beta-blockade therapy, have continued to receive a regimen of flecainide for a mean of 21 months (range 3 to 48). Seven patients have had no clinical recurrence of arrhythmias. Recurrences in 4 patients have been rare and brief with no changes in therapy required.
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PMID:Treatment of atrial tachyarrhythmias and preexcitation syndrome with flecainide acetate. 313 32

Hyperacetataemia during acetate haemodialysis has been associated with the development of a variety of unpleasant symptoms, although a direct toxic effect of acetate is hard to prove. Acetaldehyde, which is produced during the metabolism of ethanol to acetate, has various toxic effects including some of those reported during acetate dialysis such as nausea, headache and palpitations. Using a novel, recently developed method we studied blood acetaldehyde concentrations during acetate dialysis in 15 patients and found significant increases in five, with a mean peak value in these patients of 1.36 mumol/l (normal less than 0.4 mumol/l). These five patients also developed high blood acetate concentrations during a subsequent acetate dialysis and showed a significant correlation between blood acetaldehyde and acetate concentrations (r = 0.55, P less than 0.05). Blood acetaldehyde did not change during bicarbonate dialysis in these patients. Our results suggest that significant accumulation of acetaldehyde may occur during acetate dialysis, especially in those patients whose metabolic capacity for acetate is somehow impaired, and that acetaldehyde may contribute to some of the symptoms previously ascribed to 'acetate' intolerance.
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PMID:Changes in blood acetaldehyde concentrations during acetate haemodialysis. 314 21


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