Quinolone Drugs: From 1 Different Sources
A group of antibiotic drugs, often called antibacterials, that are used to treat bacterial infections. Quinolone drugs are derived from chemicals, rather than living organisms. Examples include norfloxacin, ciprofloxacin, and ofloxacin.
Quinolones are used in the treatment of a wide range of conditions, including urinary tract infections, acute diarrhoeal diseases (such as that caused by salmonella infections), and enteric fever. Their absorption is reduced by antacids containing magnesium and aluminium.
Quinolones should be used with caution in patients with epilepsy, during pregnancy and breast-feeding, and in children and adolescents. Side effects include nausea, vomiting, diarrhoea, headache, sleep disorders, dizziness, rash, and blood disorders.
A group of drugs used to treat high blood pressure (HYPERTENSION). Untreated hypertension leads to STROKE, heart attacks and heart failure. The high incidence of hypertension in western countries has led to intensive research to discover antihypertensive drugs, and many have been marketed. The drugs may work by reducing the power of the heartbeat, by dilating the blood vessels or by increasing the excretion of salts and water in the urine (diuresis). Antihypertensive treatment has greatly improved the prognosis of patients with high blood pressure by cutting the frequency of heart and renal failure (see KIDNEYS, DISEASES OF), stroke, and coronary thrombosis (see HEART, DISEASES OF). Drugs used for treatment can be classi?ed as follows: diuretics; vasodilator antihypertensives; centrally acting antihypertensives; adrenergic neurone-blocking drugs; alpha-adrenoreceptorblocking drugs; drugs affecting the renin-angiotensin system; ganglion-blocking drugs; and tyrosine hydroxylase inhibitors. The drugs prescribed depend on many factors, including the type of hypertension being treated. Treatment can be di?cult because of the need to balance the e?ectiveness of a drug in reducing blood pressure against its side-effects.... antihypertensive drugs
ARRHYTHMIA is a variation in the normal rhythm of the heartbeat. Management of the condition requires accurate diagnosis of the type, and ELECTROCARDIOGRAPHY is vital in this process (see HEART, DISEASES OF). Drug treatment is usually part of the management, and antiarrhythmic drugs can be divided clinically into those that act on supraventricular arrhythmias, those that act on both supraventricular and ventricular arrythmias, and those that act on ventricular arrythmias. Respective examples are VERAPAMIL, DISOPYRAMIDE and LIDOCAINE. This large group of drugs can also be classi?ed according to their effects on the electrical reactions of active myocardial cells. The many drugs available are described in the British National Formulary.... antiarrhythmic drugs
A group of drugs, which include ANTIBIOTICS, used to treat infections caused by BACTERIA. Drugs include CEPHALOSPORINS and cephamycins, TETRACYCLINES, AMINOGLYCOSIDES, MACROLIDES, and antituberculous compounds.... antibacterial drugs
See NEUROLEPTICS.... antipsychotic drugs
Chemicals used to kill cancerous cells. Most cytotoxic drugs also kill normal cells. There is a delicate balance between killing enough cancer cells and not so many normal cells.... cytotoxic drugs
See CONTROLLED DRUGS.... dangerous drugs
A group of chemical substances produced illegally whose properties and effects are similar to those of drugs of abuse. They may be derived from narcotic ANALGESICS, AMPHETAMINES or HALLUCINOGENS. Ecstasy is a widely used designer drug and has caused deaths among teenagers. Designer drugs are potentially dangerous, especially if taken with alcohol.... designer drugs
These widely used drugs include a range of different preparations which relieve DEPRESSION. All the antidepressants available at the time of writing are more or less equally e?ective. In studies where patients agree to take either antidepressants or identical dummy PLACEBO pills (without knowing which), at least two-thirds of those who receive antidepressants feel much better within three months, while fewer than one-third of those on placebos recover naturally in the same period. In general these drugs are useful for severe and moderate depression including postnatal illness; they are not e?ective in milder forms of depression although they may be tried for a short time if other therapies have failed.
The most widely prescribed type of antidepressants are the tricyclics, so-called because their molecular structure includes three rings. The other commonly used types are named after the actions they have on chemicals in the brain: the SELECTIVE SEROTONIN-REUPTAKE INHIBITORS (SSRIS) and the MONOAMINE OXIDASE INHIBITORS (MAOIS) – see also below. All types of antidepressant work in similar ways. Tricyclic antidepressants have cured depression in millions of people, but they can cause unpleasant side-effects, particularly in the ?rst couple of weeks. These include SEDATION, dry mouth, excessive sweating, CONSTIPATION, urinary problems, and impotence (inability to get an erection). Up to half of all people prescribed tricyclic drugs cannot tolerate the side-effects and stop treatment before their depression is properly treated. More seriously, tricyclics can upset the rhythm of the heart in susceptible people and should never be given in the presence of heart disease.
The SSRIs are newer, coming into wide use in the late 1980s. They increase the levels in the brain of the chemical messenger SEROTONIN, which is thought to be depleted in depression. Indeed, the SSRIs are as e?ective as tricyclics and, although they can cause nausea and excessive sweating at ?rst, they generally have fewer side-effects. Their main disadvantage, however, is that they cost much more than the most commonly used tricyclic, amitriptyline. On the other hand, they are more acceptable to many patients and they cause fewer drop-outs from treatment – up to a quarter rather than a half. The money saved by completed, successful treatment may outweigh the prescribing costs. SSRIs have been reported as associated with an increased risk of suicide.
Another group of antidepressants, the MAOIs, have been in use since the late 1950s.
They are stimulants, rather than sedatives, and are particularly helpful for people who are physically and mentally slowed by depression. They work well but have one big disadvantage – a dangerous interaction with certain foods and other drugs, causing a sudden and very dangerous increase in blood pressure. People taking them must carry an information card explaining the risk and listing the things that they should avoid. Because of this risk, MAOIs are not used much now, except when other treatments have failed. A new MAOI, moclobemide, which is less likely to interact and so cause high blood pressure, is now available.
LITHIUM CARBONATE is a powerful antidepressant used for intractable depression. It should be used under specialist supervision as the gap between an e?ective dose and a toxic one is narrow.
St John’s Wort is a popular herbal remedy which may be e?ective, but which is handicapped by di?erences of strength between di?erent preparations or batches. It can interact with a number of conventional drugs and so needs to be used cautiously and with advice.
In general, antidepressants work by restoring the balance of chemicals in the brain. Improved sleep and reduced anxiety are usually the ?rst signs of improvement, particularly among people taking the more sedative tricyclic drugs. Improvement in other symptoms follow, with the mood starting to lift after about two weeks of treatment. Most people feel well by three months, although a few residual symptoms, such as slowness in the mornings, may take longer to clear up. People taking antidepressants usually want to stop them as soon as they feel better; however, the risk of relapse is high for up to a year and most doctors recommend continuing the drugs for around 4–6 months after recovery, with gradual reduction of the dose after that.
Withdrawal reactions may occur including nausea, vomiting, headache, giddiness, panic or anxiety and restlessness. The drugs should be withdrawn gradually over about a month or longer (up to six months in those who have been on maintenance treatment).
A wide range of antidepressant drugs is described in the British National Formulary. Examples include:
Tricyclics: amitryptyline, imipramine, doxepin.
MAOIs: phenelzine, isocarboxazid.
SSRIs: citalopram, ?uoxetine, paraxtene. (Antidepressant drugs not in these three
groups include ?upenthixol, mertazapine and venlafaxine.)... antidepressant drugs
A group of drugs, also known as thrombolytics, with the ability to break down the protein FIBRIN, the prime constituent of blood clots (see THROMBUS; THROMBOSIS). They are used to disperse blood clots that have formed in the vessels of the circulatory system. The group includes STREPTOKINASE, alteplase and reteplase. The drugs work by activating PLASMINOGEN to form PLASMIN which degrades ?brin and breaks up the blood clot (see COAGULATION).... fibrinolytic drugs
Drugs used to treat hyperthyroidism, in which the thyroid gland is overactive. They may be used as the sole treatment or before thyroid surgery. Carbimazole and propylthiouracil interfere with the production of thyroid hormone by the gland.... antithyroid drugs
See ANALGESICS; NON-STEROIDAL ANTIINFLAMMATORY DRUGS (NSAIDS).... anti-inflammatory drugs
Any of the therapeutic substances considered indispensable for the rational care of the vast majority of diseases in a given population.... essential drugs
These drugs reduce the amount of low-density LIPOPROTEINS, which transport CHOLESTEROL and triglycerides (see TRIGLYCERIDE) in the blood, or raise the concentration of high-density lipoproteins. The aim is to reduce the progression of ATHEROSCLEROSIS and therefore help prevent coronary heart disease (see HEART, DISEASES OF). These drugs should be combined with reducing other risk factors for raised lipid concentrations, such as a high-fat diet, smoking and obesity. Lipid-regulating drugs include STATINS, ?brates, anion-exchange resins, and NICOTINIC ACID, which may be used singly or in combination under careful medical supervision (see HYPERLIPIDAEMIA).... lipid-regulating drugs
All those medications requiring written notification from a doctor to a pharmacist before they can be dispensed.... prescription drugs
Drugs, such as CANNABIS and LYSERGIC ACID DIETHYLAMIDE (LSD), that expand consciousness and perception. (See DEPENDENCE.)... psychedelic drugs
A group of drugs used to treat type-2 diabetes (see under DIABETES MELLITUS) which work by suppressing the activity of RESISTIN, a recently discovered hormone that acts against INSULIN. Resistin links obesity to type-2 diabetes which has long been known to be associated with overweight subjects.... thiazolidinedione drugs
A group of vasodilator drugs used to treat heart failure, hypertension, and diabetic nephropathy. (angiotensin converting enzyme) inhibitors are often prescribed with other drugs such as diuretic drugs or betablocker drugs. Possible side effects include nausea, loss of taste, headache, dizziness, and dry cough.... ace inhibitor drugs
A group of drugs used to treat hypertension (high blood pressure) and urinary symptoms due to enlargement of the prostate gland. Alpha-blockers are also used to treat urinary retention caused by an enlarged prostate gland (see prostate, enlarged). Side effects of the drugs may include dizziness and fatigue due to a sudden drop in blood pressure, nausea, dry mouth, and drowsiness.... alpha-blocker drugs
In the United Kingdom, controlled drugs are those preparations referred to under the Misuse of Drugs Act 1971. The Act prohibits activities related to the manufacture, supply and possession of these drugs, and they are classi?ed into three groups which determine the penalties for o?ences involving their misuse. For example, class A includes COCAINE, DIAMORPHINE, MORPHINE, LSD (see LYSERGIC ACID DIETHYLAMIDE and PETHIDINE HYDROCHLORIDE. Class B includes AMPHETAMINES, BARBITURATES and CODEINE. Class C includes drugs related to amphetamines such as diethylpropion and chlorphentermine, meprobamate and most BENZODIAZEPINES and CANNABIS.
The Misuse of Drugs Regulations 1985 de?ne the classes of person authorised to supply and possess controlled drugs, and lay down the conditions under which these activities may be carried out. In the Regulations, drugs are divided into ?ve schedules specifying the requirements for supply, possession, prescribing and record-keeping. Schedule I contains drugs which are not used as medicines. Schedules II and III contain drugs which are subject to the prescription requirements of the Act (see below). They are distinguished in the British National Formulary (BNF) by the symbol CD and they include morphine, diamorphine (heroin), other opioid analgesics, barbiturates, amphetamines, cocaine and diethylpropion. Schedules IV and V contain drugs such as the benzodiazepines which are subject to minimal control. A full list of the drugs in each schedule can be found in the BNF.
Prescriptions for drugs in schedules II and III must be signed and dated by the prescriber, who must give his or her address. The prescription must be in the prescriber’s own handwriting and provide the name and address of the patient and the total quantity of the preparation in both words and ?gures. The pharmacist is not allowed to dispense a controlled drug unless all the information required by law is given on the prescription.
Until 1997 the Misuse of Drugs (Noti?cation and Supply of Addicts) Regulations 1973 governed the noti?cation of addicts. This was required in respect of the following commonly used drugs: cocaine, dextromoramide, diamorphine, dipipanone, hydrocodeine, hydromorphone, levorphanol, methadone, morphine, opium, oxycodone, pethidine, phenazocine and piritranide.
In 1997 the Misuse of Drugs (Supply to Addicts) Regulations 1997 revoked the 1973 requirement for noti?cation. Doctors are now expected to report (on a standard form) cases of drug misuse to their local Drug Misuse Database (DMD). Noti?cation by the doctor should be made when a patient ?rst presents with a drug problem or when he or she visits again after a gap of six months or more. All types of misuse should be reported: this includes opioids, benzodiazepines and central nervous system stimulants. The data in the DMD are anonymised, which means that doctors cannot check on possible multiple prescribing for drug addicts.
The 1997 Regulations restrict the prescribing of diamorphine (heroin), Diconal® (a morphine-based drug) or cocaine to medical practitioners holding a special licence issued by the Home Secretary.
Fuller details about the prescription of controlled drugs are in the British National Formulary, updated twice a year, and available on the Internet (see www.bnf.org).... controlled drugs
A type of antibiotic drug. Aminoglycoside drugs are given by injection and are generally reserved for the treatment of serious infections because their use can damage the inner ear or kidneys. Important examples are gentamicin and streptomycin, which are also used topically for eye and ear infections.... aminoglycoside drugs
See amfetamine drugs.... amphetamine drugs
Drugs that stimulate breathing. Replaced by ventilation, they are seldom used now.... analeptic drugs
See also MEDICINES. Government legislation covers the manufacture, sale and prescription of drugs in the UK. As well as stating which drugs may be sold over the counter (OTC) without a doctor’s or dentist’s prescription, and those which can be obtained only with such a prescription, government regulations determine the extent of availability of many substances which are liable to be abused – see Misuse of Drugs Act 1971 (below). The Misuse of Drugs Regulations 1985 de?ne those individuals who in their professional capacity are authorised to supply and possess controlled drugs: see the schedules of drugs listed below under the 1985 regulations.
Misuse of Drugs Act 1971 This legislation forbids activities relating to the manufacture, sale and possession of particular (controlled) drugs. These are classi?ed into three grades according to their dangers if misused. Any o?ences concerning class A drugs, potentially the most damaging when abused, carry the toughest penalties, while classes B and C attract lesser penalties if abused.
Class A includes: cocaine, dextromoramide, diamorphine (heroin), lysergic acid (LSD), methadone, morphine, opium, pethidine, phencyclidine acid and injectable preparations of class B drugs.
Class B includes: oral amphetamines, barbiturates, codeine, glutethimide, marijuana (cannabis), pentazocine and pholcodine.
Class C includes: drugs related to the amphetamines, anabolic and androgenic steroids, many benzodiazepines, buprenorphine, diethyl propion, human chorionic gonadotrophin (HCG), mazindol, meprobamate, pemoline, phenbuterol, and somatropin.
Misuse of Drugs Regulations 1985 These regulations de?ne those people who are authorised in their professional capacity to supply and possess controlled drugs. They also describe the requirements for legally undertaking these activities, such as storage of the drugs and limits on their prescription.
Drugs are divided into ?ve schedules and some examples follow.
I: Almost all are prohibited except in accordance with Home O?ce authority: marijuana (cannabis), LSD.
II: High potential for abuse but have
accepted medical uses: amphetamines, cocaine.
III: Lower potential for abuse: barbiturates, meprobamate, temazepam.
IV: Lower potential for abuse than I to III. Minimal control: benzodiazepines.
V: Low potential for abuse: generally compound preparations containing small amounts of opioids: kaolin and morphine (antidiarrhoeal medicine), codeine linctus (cough suppressant).
(See also CONTROLLED DRUGS.)... misuse of drugs
These act by inhibiting the formation of PROSTAGLANDINS which are mediators of INFLAMMATION. They act both as ANALGESICS to relieve pain, and as inhibitors of in?ammation. Aspirin is a classic example of such a compound. Newer compounds have been synthesised with the aim of producing fewer and less severe side-effects. They are sometimes preferred to aspirin for the treatment of conditions such as RHEUMATOID ARTHRITIS, OSTEOARTHRITIS, sprains, strains and sports injuries. Their main side-effects are gastrointestinal: gastric ulcers and gastric haemorrhage may result (see STOMACH, DISEASES OF). This is because prostaglandins are necessary for the production of the mucous protective coat in the stomach and, when the production of prostaglandin is inhibited, the protection of the stomach is compromised. NSAIDs should therefore be used with caution in patients with DYSPEPSIA and gastric ulceration. The various nonsteroidal anti-in?ammatory drugs di?er little from each other in e?cacy, although there is considerable variation in patient response. Ibuprofen is one of the ?rst choices in this group of drugs as it combines good e?cacy with a low incidence of side-effects and administration is only required twice daily. Other drugs in this series include diclofenac, fenbufen, fenclofenac, fenoprofen, feprazone, ?urbiprofen, indomethacin, indoprofen, ketoprofen, ketorolac, naproxen, piroxicam, sulindac, tiaprofenic acid and tolmetin.... non-steroidal anti-inflammatory drugs (nsaids)
A group of drugs that are used to eradicate worm infestations. Possible side effects include nausea, abdominal pain, rash, headache, and dizziness.... anthelmintic drugs
Drugs that are used to treat or prevent allergic reactions (see allergy). There are several groups, including corticosteroids, antihistamines, leukotriene receptor antagonists, and sodium cromoglicate.... antiallergy drugs
A group of drugs used to relieve the symptoms of anxiety. Benzodiazepine drugs and beta-blocker drugs are the 2 main types, although antidepressant drugs may occasionally be used. Benzodiazepine drugs promote mental and physical relaxation; they can also be used to treat insomnia, but their use for this purpose is avoided because they are addictive. Beta-blockers reduce only the physical symptoms of anxiety, such as shaking and palpitations, and are not addictive.... antianxiety drugs
This group of drugs is one of three main types of drugs used to treat DEPRESSION, and was the ?rst to be introduced (in the 1950s). Tricyclic drugs work by blocking the re-uptake of the neurotransmitters SEROTONIN and NORADRENALINE (see NEUROTRANSMITTER), thus increasing the amount of the neurotransmitters at the nerve cell’s receptors. In people with depression, fewer neurotransmitters than normal are released, resulting in a slowing of neural activities. The drugs have a sedative e?ect, which can be useful for depressives with sleep problems, and an antimuscarinic action which can cause dry mouth and constipation (see ANTIMUSCARINE). Overdosage can produce COMA, ?ts (see SEIZURE) and irregular heart rhythm (ARRHYTHMIA). They are sometimes used for treating bed-wetting. (See also ANTIDEPRESSANT DRUGS.)... tricyclic antidepressant drugs
Natural or synthetic androgen hormones used as drugs; one of the most important is testosterone. These drugs are used in the treatment of male hypogonadism (underactivity of the testes) to stimulate the development of sexual characteristics.
Androgen drugs are occasionally used to treat certain types of breast cancer. They have been widely used by sportsmen wishing to increase muscle bulk and strength, a practice that is dangerous to health (see steroids, anabolic).
Adverse effects include fluid retention, weight gain, increased blood cholesterol, and, rarely, liver damage. When taken by women, the drugs can cause male characteristics, such as facial hair, to develop.
androgen hormones A group of hormones that stimulate the development of male sexual characteristics.
Androgens are produced by specialized cells in the testes in males and in the adrenal glands in both sexes. The ovaries secrete very small quantities of androgens until the menopause. The most active androgen is testosterone, which is produced in the testes. The production of androgens by the testes is controlled by certain pituitary hormones, called gonadotrophins. Adrenal androgens are controlled by ACTH, another pituitary hormone.
Androgens stimulate male secondary sexual characteristics at puberty, such as the growth of facial hair and deepening of the voice. They have an anabolic effect (they raise the rate of protein synthesis and lower the rate at which it is broken down). This increases muscle bulk and accelerates growth. At the end of puberty, androgens cause the long bones to stop growing. They stimulate sebum secretion, which, if excessive, causes acne. In early adult life, androgens promote male-pattern baldness.
Androgen deficiency may occur if the testes are diseased or if the pituitary gland fails to secrete gonadotrophins. Typical effects include decreased body and facial hair, a high-pitched voice, underdevelopment of the genitalia, and poor muscle development.
Overproduction of androgens may be the result of adrenal disorders (see adrenal tumours; adrenal hyperplasia, congenital), of testicular tumours (see testis, cancer of), or, rarely, of androgensecreting ovarian tumours (see ovary, cancer of).
In men, excess androgens accentuate male characteristics; in boys, they cause premature sexual development.
In women, excess androgens cause virilization, the development of masculine features such as an increase in body hair, deepening of the voice, clitoral enlargement, and amenorrhoea.... androgen drugs
Drugs that reduce inflammation. The main groups of these drugs are nonsteroidal antiinflammatory drugs and corticosteroid drugs. (See also analgesic drugs.)... anti-inflammatory drugs
Drugs used to treat malaria. One antimalarial drug, chloroquine, is also used to treat arthritis.... antimalarial drugs
Drugs that reduce the tendency of platelets to stick together to form blood clots when blood flow in the arteries is disrupted. This action reduces the risk of thromboembolism, which can cause potentially fatal disorders such as a myocardial infarction or stroke. Aspirin and dipyridamole are commonly used antiplatelet drugs. Others, such as ticlopidine, are used specifically to protect against clots forming in the coronary arteries of people with angina.... antiplatelet drugs
Drugs that reduce fever. Examples of antipyretic drugs include paracetamol, aspirin, and other non-steroidal anti-inflammatory drugs.... antipyretic drugs
Drugs that are used to slow or halt the spread of viruses in people with HIV infection and AIDS. There are 3 main groups: reverse transcriptase inhibitors, protease inhibitors, and non-nucleoside reverse transcriptase inhibitors. Drugs from different groups are often used in combination. Antiretroviral drugs can have a range of side effects, including nausea, vomiting, diarrhoea, tiredness, and a range of effects on blood chemistry, particularly involving fats.... antiretroviral drugs
A group of drugs that relax spasm in smooth muscle in the wall of the intestine or bladder. These drugs are used to treat irritable bowel syndrome and irritable bladder. Possible side effects include dry mouth, blurred vision, and difficulty in passing urine. (See also anticholinergic drugs.)... antispasmodic drugs
Drugs that suppress or relieve a cough (see cough remedies).... antitussive drugs
A group of sedative drugs that work by depressing activity within the brain. They include thiopental and phenobarbital. In the past, barbiturates were widely used as antianxiety drugs and sleeping drugs but have been largely replaced by benzodiazepine drugs and other nonbarbiturates. Barbiturates are now strictly controlled because they are habit-forming and widely abused. An overdose can be fatal, particularly in combination with alcohol, which dangerously increases the depressant effect on the brain (including suppression of the respiratory centre). However, phenobarbital is still commonly used as an anticonvulsant drug in the treatment of epilepsy. Thiopental is very short acting and is used to induce anaesthesia (see anaesthesia, general).... barbiturate drugs
See bisphosphonate drugs.... biphosphonate drugs
A group of non-steroidal anti-inflammatory drugs (NSAIDs) that cause less stomach irritation as a side effect than other NSAIDs. Examples of -2 inhibitors include celecoxib and rofecoxib.... cox-2 inhibitor drugs
A group of drugs used to treat bleeding disorders and to control bleeding. Haemostatic preparations that help blood clotting are given to people who have deficiencies of natural clotting factors. For example, factor VIII is used to treat haemophilia. Drugs that prevent the breakdown of fibrin in clots, such as tranexamic acid, can also improve haemostasis.... haemostatic drugs
Drugs that induce sleep (see sleeping drugs).... hypnotic drugs
A group of drugs that increase the efficiency of the body’s immune system. Immunostimulant drugs include vaccines, interferon and aldesleukin (interleukin-2). Interferon is used to treat persistent viral infections, such as hepatitis C, and some types of multiple sclerosis. Aldesleukin is used in the treatment of some types of cancer.... immunostimulant drugs
Drugs used in the treatment of glaucoma to reduce pressure in the eye. Used topically, miotic drugs cause the pupil to contract, which opens up the drainage channels and drains fluid from the front of the eye. Side effects include headache, particularly over the eye, and blurred vision. Common miotics include carbachol and pilocarpine. (See also mydriatic drugs.)... miotic drugs
Drugs that make sputum (phlegm) less sticky and easier to cough up. An example is acetylcysteine.... mucolytic drugs
A group of drugs used to treat uveitis and to dilate the pupil during examination of the inside of the eye and for surgery. Mydriatics work by relaxing the circular muscles of the iris, causing the pupil to dilate. Common mydriatic drugs include tropicamide, cyclopentolate, homatropine, and phenylephrine. (See also cycloplegia; miotic drugs.)... mydriatic drugs
See opioid analgesic drugs.... narcotic drugs
Drugs that have been developed to treat rare conditions but are not manufactured generally.... orphan drugs
A group of drugs similar to progesterone hormone. The drugs are used in oral contraceptives, are prescribed to treat menstrual problems (see menstruation, disorders of), and are included in hormone replacement therapy (HRT). Progestogen drugs are also used to treat premenstrual syndrome, endometriosis, and hypogonadism, and are sometimes used as anticancer drugs. Adverse effects include weight gain, oedema, headache, dizziness, rash, irregular periods, breast tenderness, and ovarian cysts.... progestogen drugs
Drugs that have an effect on the mind, including hallucinogenic drugs, sedative drugs, sleeping drugs, tranquillizer drugs, and antipsychotic drugs.... psychotropic drugs
A group of drugs used to produce sedation. Sedative drugs include sleeping drugs, antianxiety drugs, antipsychotic drugs, and some antidepressant drugs. A sedative drug is often included in a premedication.... sedative drugs
A group of drugs including corticosteroid drugs and anabolic steroids (see steroids, anabolic).... steroid drugs
A group of antibacterial drugs that has largely been superseded by more effective and less toxic alternatives.... sulphonamide drugs
Drugs that have a sedative effect. Tranquillizers are divided into 2 types: major tranquillizers (see antipsychotic drugs) and minor tranquillizers (see antianxiety drugs).... tranquillizer drugs
see cytokine inhibitor.... anti-tnf drugs
(in the UK) an Act of Parliament restricting the use of dangerous drugs. These controlled drugs are divided into three classes: class A drugs (e.g. heroin, morphine and other potent opioid analgesics, cocaine, LSD) cause the most harm when misused; class B drugs include amphetamines, barbiturates, and cannabis, and class C drugs include most benzodiazepines and anabolic steroids. The Act specifies certain requirements for writing prescriptions for these drugs. The Misuse of Drugs (Supply to Addicts) Regulations 1997 and the Misuse of Drugs Regulations 2001 lay down who may supply controlled drugs and the rules governing their supply, prescription, etc.... misuse of drugs act 1971
n. one of a group of chemically related synthetic antibiotics that includes *ciprofloxacin, *nalidixic acid, and *ofloxacin. These drugs act by inactivating an enzyme, DNA gyrase, that is necessary for replication of the microorganisms and are often useful for treating infections with organisms that have become resistant to other antibiotics. Possible side-effects of quinolones include nausea, vomiting, diarrhoea, abdominal pain, headache, dizziness, and itching. Confusion, joint pains, skin troubles, and tendinitis occasionally occur.... quinolone
Health Encyclopedia