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Posts Tagged ‘clofibrate’

A-Z Principal Drugs (gelatin - haloperidol)

Friday, June 26th, 2009

gelatin A protein obtained by the hydrolysis of animal tissues. Used orally as nutrient jellies, and specially refined solutions have been used as blood volume expanders (see dextran). (Gelofusine; Haemaccel).
I Gil
nephrotoxic side-effects, and dosage requires care when renal function is inadequate, and also in elderly patients. Gentarnicin is also used locally as cream or ointment (0.3%) and as eye drops (0.3%). (Cidomicin; Genticin).
gemcitabineV A cytotoxic agent related
to cytarabine, but with increased
potency and a longer action. It blocks cancer cell replication by inhibiting DNA synthesis, and may enhance the action of other agents. It is used mainly in the palliative treatment of non-small cell lung cancer.
Dose: 1000 mg/m-’ by slow i.v. infusion over 30 minutes, once a week for 3 weeks, repeated after a rest period. It is generally well tolerated, but a common side-effect is a transient influenza-like reaction. Myelosuppression is less severe than that of related cytotoxic agents. (Gemzar). See page 122 all(] Table 8.
gentian violet See crystal violet.
gestrinone An antiprogestogen used in ctidonictriosis that acts indirectly by suppressing gonadotrophin production. Dose: 2.5 ing twice weekly oil the same day,, each week for o months. Side-effects arc fluid retention, acne and voice changes. ( Dimetriose).
gestronel A synthetic progestogen used in the treatment of breast and endonietrial carcinoma and benign prostatic hypertrophy.
Dose: 200-400 ing i.m. once a week. (Depostat).
51
gemeprost A synthetic prostaglandin used to dilate the cervix uteri in first trimester abortion.
Dose: I mg, as a pessary 3 hours before surgery. Side-effects are mild uterine pain and vaginal bleeding initially, nausea and di.11 I hoc.).
gernfibrozil A plasma lipid regulating agent, with the actions and uses of hez.afibrate and clofibrate.
Dose: 901) ing-1.3 mg daily, with regular checks oil plasma lipid levels. Treatment should be withdrawn after 3 months if the response is unsatisfactory. Gernfibrozil may potentiate the action of oral anticoagulants, the dose of which should be adjusted. Side-effects include nausea, diarrhoea, abdominal pain, rash and dizziness. (Lopid). See page 146 and Table 20.
gentamicin An aminoglycoside antibiotic, active against a wide range of Gram-negative organisms, including Pseudomonas aeruginiosa, as well as against many Gram-positive bacteria, although it is not very active against anaerobic organisms. It is of great value in septicaemia and meningitis, as well as in bacterial endocarditis.
Dose: 2-3 nig/kg daily by i.m. injection or i.v. infusion. In serious or undiagnosed infections, supplementary treatment with a penicillin or metronidazole may be require(]. In common with other arninoglycosides, goitarnicin has ototoxic and
glibenclarnide An orally active hypoglycaenfic agent similar to chlorpropamide. Dose: 5-15 nig daily, according to need and response. (Daonil; Euglucon). See
page 131 and’I'able 13.
gliciazide A sulphonylurea with the actions and uses of chlorpropamide and related drugs.
Dose: 40-320 mg orally. (Diarnicron). See page 131 and Table 13.
glimepiride A sulphonylurea used in non-ill Sidi 11 -dependent (Type 11) diabetes mellitus.
Dose: 2 mg after breakfast, increased ill, to .1 mg daily. Side-effects include
transient visual disturbances, rash and urticaria. (Amaryl). See page 131 and Table 13.
glipizide A sulphonylurea, used like chlorpropamide in diabetes, but effective in much lower doses.
Dose: 5 mg initially, maintenance dose 2.5-40 nig daily. (Glibenese; Minodiab). See page 131 and Table 13.
gliquidone An oral hypoglycaemic agent similar to chlorpropamide. Effective in maturity-onset diabetes.
Dose: I5 ing initially; maintenance dose 40-60 nig daily, but up to 180 mg daily have been given. (Glurenorni). See page 131 and Table 13.

glucagon A hormone of the alpha cells of the pancreas which raises the blood sugar level by mobilizing liver glycogen. Used in acute hypoglycaemia.
Dose: 0.5-1 mg by s.c., i.m. or i.v. iniection. (GlucaGen). Give i.v. glucose if there is no response within 10 minutes.
glucocorticoids Those corticostcroids with an anti-inflammatory action similar to hydrocortisone, as distinct from the mmerailocorticoids, such as fludrocortisone, used in Addison’s disease. Thel, differ in anti-inflammatory potency, and 0.75 mg of dexamethasone is considered equivalent to 20 mg of hydrocortisone. See Table 36.
glucose Also known as dextrose. A readily absorbed carbohydrate present in many
man
sweet fruits, but obtained commercially by the hydrolysis of starch. It is given orally as a dietary supplement; in acidosis; and to raise the glycogen reserves of the liver in hepatic damage. Given by i.v. infusion as a 5% solution, or as a glucose-saline infusion in dehydration and shock, and after surgery until fluids call be taken by mouth.
glutaraldehyde A disinfectant of the formaldehyde type, but with a more rapid and powerful action. Effective against a wide range of organisms, including
viruses. Used mainly for instrument sterilization as a 2% solution. Usually activated before use by the addition of a corrosion inhibitor. Such activated solutions are stable for about 2 weeks. It is also used as a 10% solution for the removal of plantar warts.
glycerin (glycerol) A clear syrupy liquid used as a sweetening agent in mixtures and linctuses. It promotes drainage when applied to inflamed areas, and is used as a paste with magnesium sulphate for boils. It is also used as suppositories for constipation.
Dose: sometimes given orally in doses of ]- 1.5 g/kg in glaucoma and before surgery to lower the intraocular pressure.
glyceryl trinitrate A powerful but short-acting vasodilator used in the control of angina pectoris. See page 114.
Dose: 300, 500 or 600 pg tablets which should be dissolved under the tongue for a rapid response. An aerosol spray (400g per
dose), as well as long-acting tablets are also available. Tolerance may occur with prolonged therapy. Side-effects are a throbbing headache, flushing and tachycardia. It is also used locally for all extended action, particularly at night, as ointment and medicated patches. Also given by i.v. infusion to control hypertension and ischaemia during cardiovascular surgery and in left ventricular failure. Dose: 10-200 pg/min in dextrose-saline. A new use of the drug is as an ointment (0.2%) to promote healing of anal Fissure. See page 1] 4 and Table 4.
glycopyrronium A synthetic atropine-like antispasmodic used for preoperative medication.
Dose: 200-400 pg by Lill. or i.v. injection. I i has the side-effects of anticholinergic drugs such as dryness of the mouth and blurred vision. Contraindicated in glaucoma. (Robinul).
GM-CSF Granulocyte-macrophage colony stimulating factor. See molgramostim. gold therapy See sodium aurothionialate.
gonadotrophins The follicle-stimulating hormone (FSH) and the luteinizing hormone (1-11) of the anterior pituitary gland. They stimulate ovarian development and the production of oestrogens; ill the male LH controls the formation of androgens. See gonadorclin.
gonadorefin A synthetic form of the gonadot roph in -releasing hormone of the pituitary gland (M-111-1). It is used to assess pituitary function.
Dose: 100 pg by i.v. injection normally
rise to a rapid rise in the plasma level of the luteinizingand follicle-stimulating hormones. In amenorrhoea and infertility due to gonadorelin insufficiency, it is given by pulsed s.c. infusion in doses of 1-20pg every 90 minutes, day and night. Treatment for up to 6 months may be required. Side-effects are uncommon. (Fertiloli Relefact). Sonic analogues of gonadorelin are used in remain cancers. See page 122.
goserelin A synthetic analogue of the hypothalamic hormone (LH-RH). It
suppresses the production of testosterone, d
anis used in the treatment of hormone-
dependent carcinoma of the prostate. It is also used in endometriosis and postmenopausal breast cancer.

Dose: 3.6 ing by s.c. injection every 28 days or as an implant. Side-effects include impotence, hot flushes, rash, breast swelling and tenderness. (Zoladex). See page 122 and ‘I able 8.
gramicidin A mixture of antibiotics effective against many Gram-positive organisms, but it is too toxic for syitenii, use. Used topically in infected skin conditions, usually in association with neomycin and hydrocortisone.
granisetron A scrotonin (5—HT) antagonist with a highly selective and powerful antiernetic action mediated by its effects on the 5-4-11′, receptors. It is used in the prevention and treatment of the severe nausea and vomiting induced by potent cytotoxic drugs such as cisplatin.
Dose: I mg I hour before treatment, then I ing twice daily, or by i.v. infusion in doses of 3 mg, repeated up to 3 times over 24 hours. For prophylaxis, a dose of 3 mg should be given before chemotherapy is commenced. Headache, rash and consti pation are common side-effects. (Kytril). See page 158.
griseofulvin An orally effective but slow
acting antifungal antibiotic that is
deposited selectively in the skin, hair and nails. It is used in the systemic treatment of ringworm and other dermatophyte infections of the keratin-containing tissues, but only when local treatment has failed.
Dose: 0.5-1 g daily, but prolonged therapy is required. Side-effects are headache, nausea, dizziness, rash and photosensitivity. 11 may also reduce the effects of oral contraceptives. (Fulcin; Grisovin).
growth hormone See soma(ropin.
guanethidine An anti-hypertensive drug that [)rings about a reduction in blood pressure by blocking transmission in adrenergic nerves, and preventing the release of noradrenaline. It has been used in the treatment of hypertension, often with a thiazide diuretic, but its use has declined as it may cause postural hypotension. Still used as part of combined therapy in resistant hypertension.
Dose: 20 mg daily, increased by 10 ing at weekly intervals according to response, up to 50 mg daily, although sometimes larger doses are required. Dose by i.m. injection,
10-20 nig as required. Diarrhoea, weakness, nasal congestion and bradycardia are common side-effects. (Ismelin). See page 148 and Table 21. Guanethidine is occasionally used as eye drops (1-3%) in glaucoma. (Ganda). See page 138 and Table 16.
guar gum A vegetable gum that, when taken with food, appears to retard the absorption of carbohydrates. It is used in the supplementary treatment of diabetes mellitus.
Dose: up to 15 g daily, usually sprinkled mi food. It is essential that a dose should he taken with an adequate fluid intake, and that the final dose is not taken at bedtime. Side-effects are flatulence and abdominal distension. (Guarem). See page 131 and Table 13.
halcinonide A powerful corticosteroid used iii severe inflammatory skin conditions not responding to other corticosteroids. It is applied sparingly as a 0.1% cream. (Halciderin).
halibut-liver oil A rich source of vitamins A ‘Ind 1).
Dose: 0.2-0.5 mi.
halofantrine An antimalarial, acting at the erythrocytic stage of the life cycle of plasmodium, and useful in chloroquine 01 MUlti-drug resistant malaria.
Dose: 500 nig 6-hourly for 3 doses between meals. Side-effects are nausea, vomiting and diarrhoea. It must not be given with or after mefloquine (risks of fatal arrhythmias). Contraindicated in pregnancy. 0 lalfan).
haloperidol A powerful tranquillizer used in schizophrenia, mania and psychoses. Dose: 5-20 ing daily, up to a maximum of 200 mg, reduced later according to
response. Dose by i.m. injection for rapid control of hyperactive psychotic patients, 5-30 mg initially, followed by 5 ing or more as required. For depot treatment, it is given as haloperidol decanoate, 50-300 mg by deep i.m. injection every 4 weeks. It is also given orally in doses of 500 g twice daily in severe anxiety. Doses of 1.5 nig

A-Z Principal Drugs (clobazam - co-dydramol)

Wednesday, June 24th, 2009

clobazam A benzodiazepine tranquillizer with the actions and uses of diazepam, but with reduce(] sedative effects. It is used mainly in the short-term treatment of anxiety.
Dose: 20-30 mg as a single nightly dose. III severe anxiety larger but divided doses niav be given under medical control. It is also useful in the auxiliary treatment of epilepsy. (Frkiuni). See page [ 17 and'i'able.5.
clobetasol A potent corticosteroid used as a cream or ointment (0.05%) in the short-term treatment of severe inflammatory skin conditions not responding to less powerful drugs. The application should be used sparingly as absorption with systematic and local side-effects may occur with excessive or prolonged treatment. (Dermovate).
clobetasone A locally acting corticosteroid, used as a cream or ointment (0.05%) in eczema and inflammatory skin conditions not responding to less potent drugs. (Fumovate).
be withdrawn. Clofibrate may potentiate tile action of oral anticoagulants.
clomiphene An anti-oestrogen used to stimulate ovulation in some types of anovulatory sterility.
Dose: 50 mg daily for 5 days a month, repeated if ovulation does not occur, Its use has resulted in occasional multiple births. If pregnancy does not follow tip to 6 courses, further treatment is of little use. Side-effects are hot flushes, and abdominal discomfort; visual disturbances indicate that treatment should be withdrawn. Contraindicated in hepatic disease and ovarian neoplasm. (Cloinid; Scroplictic).
clomipramine A tricyclic antidepressant with the actions, uses and side-effects of inupramine and related drugs, but with reduced sedative properties.
Dose: 30-150 mg daily orally; up to
150 nog daily by im. injection. (Anafranil). See page 128 and Table 11.
clodronate sodium A bisphosphonate used like etidronate and pamidronate in the hypercalcaemia of malignancy.
Dose: 1.6-3.2 g daily as a single dose
I hour before or after food. May also be given i.v. by infusion as a single daily dose of 300 mg for 7-10 days. Long oral treatment is necessary, and serum calcium and phosphate levels should be checked. Side-effects are nausea and diarrhoea. (Hollefos; Loron).
clofazimine An antileprotic agent given in association with dapsone and rifampicin to prevent the incidence of resistance. Dose: 300 Ing monthly; in lepra reactions, 300 ing daily for 3 months. It may cause discoloration of the urine, skin and lesions. (Lunprcric).
clofibrate A plasma lipid-regulating agent used in hyperlipidaernia in conjunction with dietary measures, to reduce excessive plasma levels of cholesterol and
t riglycerides.
Dose: 2 g daily, with regular checks on plasma lipid levels. Side-effects are transient nausea and abdominal discomfort.
It increases the biliary excretion of cholesterol, and gall stones are a contraindication. A myosins-like reaction may occur in renal impairment, and the drug should
clonazepam A benzodiazepine with a marked anticonvulsant action of value in all types of epilepsy.
Dose: I mg daily initially, increased LIP to 8 nog daily according to need. fit status epilepticus, I mg by slow i.v. injection, but apnoea and hypotension, requiring prompt treatment, may occur. Side-effects include drowsiness, dizziness and irritability and occasionally, paradoxical aggression. (Rivotril). See page 136 and Table 15.
Clonidine A centrally acting antihypertensive pertensive agent, now used less frequently.
Dose: 150-300pg daily initially, increased it required up to 1.2 mg daily. Doses of 150-300 pg have been given by slow i.v. injection. Sudden withdrawal of the drug may provoke a I P
hy ertensive crisis.
(Catapres). Clonidine is also used in doses of 100 pg daily in the prophylaxis of migraine. (Dixarit). The side-effects include sedation, dry mouth, fluid retention and bradycardia. See pages 154 andTible 21.
clorazepate A benzodiazepine tranquillizer with the actions, uses and side-effects of diazepam. Used mainly in the short-term treatment of anxiety.
Dose: 7.5-22.5 mg daily, or it single dose of I  mg at night. (Tranxene). See page 117 and Table 5.

clotrimazole An antifungal agent used local]) in vaginal candidiasis.
Dose: 104-200 mg as vaginal tablets or pessaries for nightly insertion. Also used as a 1% cream, lotion or dusting powder for fungal infections of the skin and cars. Side-effecis are local irritation and erythema. (Canestall).
cloxacillin An acid-stable, semi-synthetic penicillin that is not broken down by the enzyme penicillinase, and so is effective in infections due to penicillin-resistant staphylococci.
Dose: 2 g daily before lbod. In severe infeL bons 250-500mg by injection 6-hourly. Now largely replaced by flucloxacillin. The side-coccus are those of the penicillins generally. (Orbenin).
antibacterial action, but when given with a penicillin the antibiotic is able to
penetrate into the cell without loss of
activity. The combination is of value in    33 infections due to penicillin-resistant penicillinase-producing bacteria, including most staphylococci.
Dose: as amoxycillin 750 mg daily, doubled in severe infections, or 3-4 g daily by slow i.v. injection. The side-effects, are similar to those of arnpicillin, but a posttreatment reaction is cholestatic jaundice. (Augmentin).
co-beneldopa tablets of levodopa and henzerazide. (Madopar). See levodopa.
cocaine A local anaesthetic. Still used occasionally in ophthalmology as a 2% solution, often with homatropine.
clozapine A potent but potentially toxic dopamine-receptor blocking agent used in schizophrenia resistant to other drugs.
Dose: 12.5-50 mg daily initially (with care -risk of hypotension), slowly increased to 300 mg daily according to need. A serious side-effect is neutropenia that may lead to agranulocytosis, and treatment must be
Linder hospital supervision with regular blood monitoring. Patient, doctor and hospital pharmacist must be registered with the Clozaril (clozapine) Patient
Monitoring Service to maintain the necessary strict control of treatment. (Clozaril).
coal tar Tile black viscous liquid obtained from the distillation ofcoal. It is used mainly as Zinc and Tar Paste in psoriasis and atophic eczema.
co-amilofruse tablets of the diuretics ainiloricle and frusemide. (Fruinil; Lasoride).
co-amilozide Tablets of the diuretics amiloride and hydrochlorothiazide. (Moduretic).
co-amoxicla A mixture of clavulinic acid and amoxycillin.The resistance to penicillin by staphylococci and other organisms is due to penicillinases such as beta-lactamase in the bacterial cell wall. Those enzymes inactivate penicillin before it call enter the cell and exert its antibacterial action. Such inactivation can be prevented by inhibitors of beta-lactamase such as clavidanic acid. That acid has no
co-careldopa Tablets of levodopa and carbidopa. (Sinemet). See levodopa.
co-codamol Tablets of codeine and paracetamol.
co-codaprin Tablets of codeine and aspirin.
co-darrthramer Tablets of danthron and poloxamer.
cod-liver oil A rich source of vitamins A and 1). It is used as a dietary supplement to improve general nutrition, promote calcification and prevent rickets.
Dose: 2-10 in[ daily.
codeine One of the alkaloids of opium. It depresses the cough centre and is used in the treatment of useless cough. It also reduces intestinal motility, and is useful in the symptomatic treatment of diarrhoea. It also has mild analgesic properties, and is present with aspirin in co-codaprin and similar preparations. In large doses the constipating action may be a disadvantage. Dose: 10 60 mg.
co-dergocrine A cerebral vasodilator, sometimes used in the treatment of senile dementia.
Dose: 1.5 mg daily, but the response is unreliable. Side-effects include nausea, rash and bradycardia. (Hydergine).
co-dydramol Tablets of dihydrocodeine and paracetamol.

A-Z Principal Drugs (bezafibrate - busulphan)

Wednesday, June 24th, 2009

bezafibrate A plasma-lipid regulating agent with an action similar to clofibrate, and used in the treatment of hyperlipidaemia not responding to diet.
Dose:daily with food. Contraindicated in renal or hepatic dysfunction. May potentiate oral anticoagulants. Side-effects are nausea, pruritus and urticaria. (Bezalip). See page 146 and Table 20.
Dose: It is given in hypertension and angina in doses of 5-20 nig daily. (Enicor; Monocor). See pages 114 & 148, and fables 4 & 21.
bisphosphonates Substances used in Paget’s disease of bone and hypercalcaemia of malignancy. See alendronate, disodium etidronate, disodium pamidronate and sodium clodronate.
bicalutamide A nonsteroidal anti-androgen that binds, selectively with androgen receptors. It is used with an LH-111-1 analogue such as goserelin in advanced prostatic cancer in doses of 50 mg daily. (Casodex). See page 122 and Table 8.
bipetiden An antispasmodic and parasympatholytic drug used chiefly to control the rigidity and excessive salivation of parkinsonism. It has less effect on tremor.
Dose: 2 ing daily initially, increased, as required, up to 0 mg or more daily. If necessary it may be given by i.m. or slow i.v. injection in doses of 5-20 mg daily. Side-effects include dizziness, blurred vision and drowsiness. (Akineton). See page 160 and Table 26.
BIPP A mixture of bismuth subnitrate, iodoform and liquid paraffin, used occasionally as an antiseptic dressing.
bisacodyl A synthetic laxative that exerts its action by a direct stimulating effect on Ilse nerve endings of the colon.
Dose: 10 mg orally, or as a suppository. Abdominal cramp is an occasional side-effect. It should not be used in intestinal obstruction.
bismuth chelate A potassium-bismuthcitrate complex used to promote the healing of peptic ulcers, mainly by a protective action.
Dose: 480 nig daily for 28 days, repeated if* necessary at monthly intervals. Not to be given with food. It may blacken the faeces. (Dc-NoltalO.
bismuth subgallate A yellow insoluble powder with astringent properties. Used as dusting powder, and as suppositories for rectal conditions.
bisoprolol A beta-blocking agent with the actions, uses and side-effects of propranolol.
bleomycin A cytotoxic antibiotic, exceptional in causing little or any disturbance of bone marrow activity. Used mainly in skin tumours, lymphomas and mycosis fungoides.
Dose: 15-30 ing twice-weekly by i.m. or i.v. injection up to a total dose of 500 ing. The onset of stomatitis is an indication of the maximum tolerated close. Pigmentation of the skin may occur, but a severe close-related, delayed reaction is
pulmonary fibrosis, requiring immediate withdrawal of the drug. There is a risk of respiratory failure during general anaesthesia associated with a high oxygen intake. See page 122 and ‘rable 8.
botulinum toxin complex Botulinuin toxin causes severe respiratory muscle paralysis, but a modified form has a local action. The complex is used in severe blepharospasm and given by injection into the ocular muscle. Response is slow (1-2 weeks) and treatment may need to be repeated at intervals of 8 weeks. (Botox; Dysport).
bretylium An antihypertensive agent, now used on[), in the control of resistant ventricular arrhythmias.
Dose: i mg/kg, i.m., 6-8-hourly. It may also be given by slow i.v. injection in doses of 5-10 mg/kg, repeated as required. Side-effects include nausea, vomiting and severe hypotension. (Bretylate).
brimonidine A selective alpha,-andrenergic receptor agonist. It is used in the treatment of glaucoma when bcta-blockers are not suitable or not tolerated.
Dose: one drop of a 0.2% solution in the eye or eyes twice daily. Some initial burning and stinging may occur, and an ocular allergic reaction may occur with prolonged therapy. (Alphagan).
bromazepam A benzodiampine used mainly
in the short-term treatment of anxiety.

Dose: 9-18 mg daily. Contraindicated in respiratory depression and phobic states. (I-exotan). See page 117 and fable 5.
bromocriptine An inhibitor of the release of prolactin from the pituitary gland. It is used to prevent or suppress lactation when other measures have failed.
Dose: 1-1.5 mg daily initially for a few days, then twice daily for 14 days. It also stimulates dopamine receptors in the brain and is used in parkinsonism, mainly in patients unable to tolerate levodopa, to stimulate any surviving dopamine receptors. Dose: 1.25 mg at night initially, with food, slowly increased according to response up to 40 mg. The use of the drug requires care, as it has many side-effects, including early hypotensive reactions. Bromocriptine is also used in some condi- tions of pituitary dysfunction such as acromegaly. (Pardolcl). See page 160 an(] Table 26.
brompheniramine An antihistamine similar to promethazine, but with shorter action and reduced side-effects. It also has some antitussive properties.
Dose: 12-32 mg daily. (Dimotane). See pate 110 and Table 2.
budesonide A steroid similar to beclomethasone, and used by oral aerosol inhalation in chronic airway obstruction and other asthmatic conditions.
Dose: 200800 pglkg (1-4 puffs) according it) need. A long-acting form (Entocort) is used in the treatment of Crohn’s disease. Dose: 9 nig daily before breakfast for up to 8 weeks. Also used locally as a cream (0.025%) in eczema, psoriasis and
dermatitis. (Pulmocort; Preferid).
bumetanide A rapidly acting loop diuretic similar to frusemide, with comparable actions, uses and side-effects.
Dose: 1-5 mg daily. Much larger doses may be needed when renal function is impaired. In acute pulmonary and cardiac oedema, 1-2 mg may be given i.v. Morirxx). See page 148 and “fable 21.
bupivacaine A local anaesthetic related to lignocaine but characterized by its increased potency and long duration of action which may be tip to 8 hours when used for nerve blocks. It is also of value in continuous epidural analgesia. It is used as a 0.25% to 0.5% solution in doses
according to requirements with or without adrenaline. The side-effects are those of lignocaine, but it may cause more severe myocardial depression. (Marcain).
bupronorphine A powerful analgesic, related to morphine, but less likely to cause dependence. Valuable in pain of terminal cancer, after operation or myocardial infarction.
Dose: 200-100 Vg 6-8-hourly as sublingual tablets, or 300-600 pg by i. in. or slow i.v. injection at intervals of 6-8 hours according to need. Side-effects include drowsiness, nausea and dizziness. Naxolone is only a partial antagonist. f *1 enigesic).
buserelin A synthetic gonadotrophinreleasing hormone that indirectly depresses androgen and oestrogen synthesis. It is used in the treatment of testosterone-sensitive prostatic carcinoma.
Dose: 500 Vg by s.c. injection 8-hourly for 7 clays, followed of    bv intranasal mainte- nonce dosesdoseso100 pg’6 times a day. Patients should be warned that an
increase in pain may occur initially. Side-effects are hot flushes and loss of libido. (Suprefact). It is also used its a nasal spray in the long-term treatment of endometriosis in doses of 900 pg daily. Side-effects are menstrual-like bleeding and mood changes. (Suprecur). See goserelin, lcuprorelin and nafarelin.
buspirone A drug for the treatment of anxiety. It acts more selectively than the benzod iazepi ties on serotonin receptors in the brain, but the full response may take 1-2 weeks.
Dose: 10-15 mg daily initially, slowly
in, ceased as required up to a maximum of 45 mg daily. Side-effects are nausea, dizziness and drowsiness. Benzod  must be withdrawn slowly before transfer to buspirone. ( Ruspar). See page 117 and “fable 5.
busulphan A cytotoxic compound used in the palliative treatment of chronic myeloid leukaemia. Close haernatological control is essential during treatment as remission of symptoms may not be complete for some weeks and overdose may cause irreversible myelodepression.
Dose: 0.5-4 mg daily. Side-el’16:ts include pigmentation of the skin. (vIvIeran).