side effect


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effect

 [ĕ-fekt´]
a result produced by an action.
additive effect the combined effect produced by the action of two or more agents, being equal to the sum of their separate effects.
adverse effect a symptom produced by a drug or therapy that is injurious to the patient.
Bainbridge effect Bainbridge reflex.
Bohr effect decreased affinity of hemoglobin for oxygen caused by an increase of carbon dioxide; the oxyhemoglobin dissociation curve is displaced to the right because of higher partial pressure of carbon dioxide and lower pH. See also Haldane effect.
The Bohr effect causing a shift to the right in the oxyhemoglobin dissociation curve.
Crabtree effect the inhibition of oxygen consumption on the addition of glucose to tissues or microorganisms having a high rate of aerobic glycolysis; the converse of the Pasteur effect.
cumulative effect the action of a drug or treatment resulting from repeated use.
Doppler effect see doppler effect.
experimenter e's demand characteristics.
extrapyramidal e's the side effects caused by neuroleptic medications, including dystonias, parkinsonism, akathisia, and tardive dyskinesia.
Haldane effect increased oxygenation of hemoglobin promotes dissociation of carbon dioxide; see also Bohr effect.
Hawthorne effect a psychological response in which the subjects in a research study change their behavior simply because they are subjects in a study, not because of the research treatment.
heel effect variation in x-ray beam intensity and projected focal spot size along the long axis of the x-ray tube from cathode to anode.
parallax effect the position of the image on each emulsion of dual emulsion film; it is accentuated by tube-angled x-ray techniques.
Pasteur effect the decrease in the rate of glycolysis and the suppression of lactate accumulation by tissues or microorganisms in the presence of oxygen.
photoelectric effect ejection of electrons from matter as a result of interaction with photons from high frequency electromagnetic radiation, such as x-rays; the ejected electrons may be energetic enough to ionize multiple additional atoms.
placebo effect the total of all nonspecific effects, both good and adverse, of treatment; it refers primarily to psychological and psychophysiological effects associated with the caregiver-patient relationship and the patient's expectations and apprehensions concerning the treatment. See also placebo.
position effect in genetics, the changed effect produced by alteration of the relative positions of various genes on the chromosomes.
pressure effect the sum of the changes that are due to obstruction of tissue drainage by pressure.
proarrhythmic effect any new, more advanced form of arrhythmia caused by an antiarrhythmic agent, especially those that produce hemodynamically important symptoms. These arrhythmias occur less than 30 days after initiation of treatment and are not due to a new event such as acute myocardial infarction or hypokalemia.
side effect a consequence other than that for which an agent is used, especially an adverse effect on another organ system.
Somogyi effect see somogyi effect.

ad·verse ef·fect

(ad'vers e-fekt'),
a result of drug or other therapy in addition to or in extension of the desired therapeutic effect; usually but not necessarily, connoting an undesirable effect. Although technically the therapeutic effect carried beyond the desired limit (for example, a hemorrhage from an anticoagulant) is a side effect, the term more often refers to pharmacologic results of therapy unrelated to the usual objective (for example, a development of signs of Cushing syndrome with steroid therapy).
Synonym(s): side effect

side effect

n.
A peripheral or secondary effect, especially an undesirable secondary effect of a drug or therapy.

side effect

Etymology: AS, side + L, effectus
any reaction to or consequence of a medication or therapy. This can be an effect carried beyond the desired limit, such as hemorrhaging from an anticoagulant, or a reaction unrelated to the primary object of the therapy, such as an anaphylactic reaction to an antibiotic. Usually, although not necessarily, the effect is undesirable and may manifest itself as nausea, dry mouth, dizziness, blood dyscrasias, blurred vision, discolored urine, or tinnitus.

side effect

Any immediate or long-term adverse effect of a drug or therapy other than that intended, including headache, nausea, hair loss, skin irritation, and so on.

side ef·fect

(sīd e-fekt')
A result of drug or other therapy in addition to or in extension of the desired therapeutic effect; usually, but not necessarily, connoting an undesirable effect.

side effect

Any effect of a drug or other treatment additional to the required effect. Most side-effects are unwanted and some are dangerous.

ad·verse ef·fect

(ad'vers e-fekt')
1. Result of drug or other therapy in addition to or in extension of the desired therapeutic effect; usually but not necessarily, connoting an undesirable effect.
2. Although technically the therapeutic effect carried beyond the desired limit (e.g., a hemorrhage from an anticoagulant) is a side effect, the term more often refers to pharmacologic results of therapy unrelated to the usual objective (e.g., a development of signs of Cushing syndrome with steroid therapy).
Synonym(s): side effect.

side effect,

n an effect not sought in the case under treatment that can complicate the prognosis.

effect

a result produced by an action. The relationship between the two can be expressed in linear form. The total association between them may be the sum of a number of effects. The effect may be direct when it is exerted without being transmitted through intervening factors, or indirect when it is. It may also be a spurious effect when the observed changes are due to causes and correlations common to both.

additive effect
the combined effect produced by the action of two or more agents, being equal to the sum of their separate effects.
Coolidge effect
the stimulation of sexual behavior in a male animal upon exposure to a new female.
cumulative effect
cumulation action.
experimenter e's
demand characteristics; the characteristics supplied by the experimental subject in response to what it perceives are the demands of the experimenter.
effect modifier
a factor which modifies the effect of a causal factor under study. Called also interaction.
position effect
in genetics, the changed effect produced by alteration of the relative positions of various genes on the chromosomes.
pressure effect
the sum of the changes that are due to obstruction of tissue drainage by pressure.
side effect
a consequence other than that for which an agent is used, especially an adverse effect on another organ system.

side

to one side.

side bar
see siderod.
side effect
a consequence other than that for which an agent is used, especially an adverse effect on another organ system.
side lines
a means of restraining a horse which can also be used for casting. A 60 ft cotton rope is knotted so that there is a fixed loop in the center. This is placed over the head and seated on the shoulder and the two ends passed between the forelimbs. Each rope end is passed around a hind pastern and brought back to the shoulder loop. Pulling one of the legs up so that the hoof just reaches the ground is used as restraint to prevent the horse rearing. Pulling both legs forward causes the horse to fall.
side reins
see side rein.

Patient discussion about side effect

Q. Do they have any side effects? what are the benefit of drugs like Divalproex and Carbamazepine over lithium for acute mania patients? Do they have any side effects?

A. It’s a good drug for acute mania patients, but has not been found to be effective in patients with depression. Patients who did not not respond to lithium are benefitted by this. The side effects are weight gain and sedation, as well as multiple drug-drug interactions.

Q. Does it carry any side effects? I am pregnant and in my second trimester. I am having flu infections. I am prescribed with Sudafed. Does it carry any side effects?

A. sudafed is a symptomatical medication. and you can pass the flu without it. in it's instruction its recommended not to use it in pregnancy. so why use it? it's not like it's a life thretening situation and you can't survive without it. it's not worth the risk for the fetus if you ask me.

Q. Does Viagra have any side effects? My boyfriend started taking Viagra and now he has headaches. Could this be caused by the Viagra?

A. Yes, headaches are a side effect of Viagra. Other common side effects are facial flushing, upset stomach and a temporary bluish vision. If this persists, he should consult his Doctor.

More discussions about side effect
References in periodicals archive ?
Side effects are not pleasant to experience but did you know that you can help to build up vital information by reporting your side effect to the Yellow Card Scheme?
At the end of 3 months, participants answered questions about side effects, and then they were given the other formulation.
Unfortunately, anticholinergic medications have their own side effects, such as impairment in cognitive functioning, sedation, blurred vision, and dry mouth (Spohn & Strauss, 1989).
Among the many other possible Side effects are fluid retention, unprovoked nose bleeds, arthritis, and peptic ulcers.
Side effects may include headaches, rapid heartbeat, and joint pain.
Side effects data that doctors report to drug companies are too piecemeal for reliable comparisons of different drugs' risks, he says.
The reason we don't use it all the time is because it has a lot of side effects.
The molecular structure and mechanism of action of PLATROL(R) is responsible for selective antiplatelet activity without the side effect, according to Mr.
The implants are not risk-free: Some 7 percent to 17 percent of patients suffered side effects similar to laser surgery, including glare, halos and problems with night vision.
After linking drugs and their side effects into a network, the researchers instructed a computer to predict likely new connections between drugs and side effects.