When transferring patients from another

levodopa/dopa-decarboxylase inhibitor preparation, the

previous preparation should be discontinued at least

12 hours before.

Co-careldopa 25/100 provides an adequate dose of

carbidopa when low doses of levodopa are needed.

l PATIENT AND CARER ADVICE Manufacturer advises

patients and their carers should be informed of the risk of

developing dopamine dysregulation syndrome; addictionlike symptoms should be reported.

Driving and skilled tasks Sudden onset of sleep Excessive

daytime sleepiness and sudden onset of sleep can occur

with co-careldopa.

Patients starting treatment with these drugs should be

warned of the risk and of the need to exercise caution

when driving or operating machinery. Those who have

experienced excessive sedation or sudden onset of sleep

should refrain from driving or operating machines until

these effects have stopped occurring.

Management of excessive daytime sleepiness should

focus on the identification of an underlying cause, such as

depression or concomitant medication. Patients should be

counselled on improving sleep behaviour.

l NATIONAL FUNDING/ACCESS DECISIONS

DUODOPA ®

Scottish Medicines Consortium (SMC) decisions

SMC No. 316/06

The Scottish Medicines Consortium has advised (June 2016)

that co-careldopa (Duodopa ®) intestinal gel is accepted for

restricted use within NHS Scotland, for the treatment of

advanced levodopa-responsive Parkinson’s disease with

severe motor fluctuations and hyper-/dyskinesia when

available combinations of Parkinson medicinal products

have not given satisfactory results, only in patients not

eligible for deep brain stimulation. This advice is

contingent upon the continuing availability of the Patient

Access Scheme in NHS Scotland or a list price that is

equivalent or lower.

All Wales Medicines Strategy Group (AWMSG) decisions

AWMSG No. 3397

The All Wales Medicines Strategy Group has advised (March

2018) that Duodopa ® intestinal gel is recommended as an

option for restricted use within NHS Wales, for the

treatment of advanced levodopa-responsive Parkinson’s

disease with severe motor fluctuations and hyper-

/dyskinesia when available combinations of Parkinson

medicinal products have not given satisfactory results,

only in patients not eligible for deep brain stimulation.

This recommendation applies only in circumstances where

the approved Wales Patient Access Scheme (WPAS) is

utilised or where the list/contract price is equivalent or

lower than the WPAS price.

l MEDICINAL FORMS There can be variation in the licensing of

different medicines containing the same drug. Forms available

from special-order manufacturers include: oral suspension, oral

solution

Modified-release tablet

CAUTIONARY AND ADVISORY LABELS 10, 14, 25

▶ Caramet CR (Teva UK Ltd)

Carbidopa (as Carbidopa monohydrate) 25 mg, Levodopa

100 mg Caramet 25mg/100mg CR tablets | 60 tablet P £11.47

DT = £11.60

▶ Half Sinemet CR (Merck Sharp & Dohme Ltd)

Carbidopa (as Carbidopa monohydrate) 25 mg, Levodopa

100 mg Half Sinemet CR 25mg/100mg tablets | 60 tablet P £11.60 DT = £11.60

▶ Lecado (Sandoz Ltd)

Carbidopa (as Carbidopa monohydrate) 25 mg, Levodopa

100 mg Lecado 100mg/25mg modified-release tablets | 60 tablet P £9.86 DT = £11.60

Carbidopa (as Carbidopa monohydrate) 50 mg, Levodopa

200 mg Lecado 200mg/50mg modified-release tablets |

60 tablet P £9.86 DT = £11.60

▶ Sinemet CR (Merck Sharp & Dohme Ltd)

Carbidopa (as Carbidopa monohydrate) 50 mg, Levodopa

200 mg Sinemet CR 50mg/200mg tablets | 60 tablet P £11.60

DT = £11.60

Tablet

CAUTIONARY AND ADVISORY LABELS 10, 14

▶ Co-careldopa (Non-proprietary)

Carbidopa (as Carbidopa monohydrate) 12.5 mg, Levodopa

50 mg Co-careldopa 12.5mg/50mg tablets | 90 tablet P £6.28–

£8.25 DT = £8.13

Carbidopa (as Carbidopa monohydrate) 10 mg, Levodopa

100 mg Co-careldopa 10mg/100mg tablets | 100 tablet P £13.50 DT = £12.20

Carbidopa (as Carbidopa monohydrate) 25 mg, Levodopa

100 mg Co-careldopa 25mg/100mg tablets | 90 tablet P £5.71

| 100 tablet P £26.99 DT = £9.02

Carbidopa (as Carbidopa monohydrate) 25 mg, Levodopa

250 mg Co-careldopa 25mg/250mg tablets | 100 tablet P £35.00 DT = £34.98

▶ Sinemet 110 (Merck Sharp & Dohme Ltd)

Carbidopa (as Carbidopa monohydrate) 10 mg, Levodopa

100 mg Sinemet 10mg/100mg tablets | 100 tablet P £7.30 DT =

£12.20

416 Movement disorders BNF 78

Nervous system

4

▶ Sinemet 275 (Merck Sharp & Dohme Ltd)

Carbidopa (as Carbidopa monohydrate) 25 mg, Levodopa

250 mg Sinemet 25mg/250mg tablets | 100 tablet P £18.29 DT =

£34.98

▶ Sinemet 62.5 (Merck Sharp & Dohme Ltd)

Carbidopa (as Carbidopa monohydrate) 12.5 mg, Levodopa

50 mg Sinemet 12.5mg/50mg tablets | 90 tablet P £6.28 DT =

£8.13

▶ Sinemet Plus (Merck Sharp & Dohme Ltd)

Carbidopa (as Carbidopa monohydrate) 25 mg, Levodopa

100 mg Sinemet Plus 25mg/100mg tablets | 100 tablet P £12.88

DT = £9.02

Gel

CAUTIONARY AND ADVISORY LABELS 10, 14

▶ Duodopa (AbbVie Ltd)

Carbidopa (as Carbidopa monohydrate) 5 mg per 1 ml, Levodopa

20 mg per 1 ml Duodopa intestinal gel 100ml cassette | 1 bag P £77.00

Levodopa with carbidopa and

entacapone

The properties listed below are those particular to the

combination only. For the properties of the components

please consider, co-careldopa p. 415, entacapone p. 412.

l INDICATIONS AND DOSE

STALEVO ® 100/25/200

Parkinson’s disease and end-of-dose motor fluctuations

not adequately controlled with levodopa and dopadecarboxylase inhibitor treatment

▶ BY MOUTH

▶ Adult: 1 tablet for each dose; maximum 10 tablets per

day

STALEVO ® 125/31.25/200

Parkinson’s disease and end-of-dose motor fluctuations

not adequately controlled with levodopa and dopadecarboxylase inhibitor treatment

▶ BY MOUTH

▶ Adult: 1 tablet for each dose; maximum 10 tablets per

day

STALEVO ® 150/37.5/200

Parkinson’s disease and end-of-dose motor fluctuations

not adequately controlled with levodopa and dopadecarboxylase inhibitor treatment

▶ BY MOUTH

▶ Adult: 1 tablet for each dose; maximum 10 tablets per

day

STALEVO ® 175/43.75/200

Parkinson’s disease and end-of-dose motor fluctuations

not adequately controlled with levodopa and dopadecarboxylase inhibitor treatment

▶ BY MOUTH

▶ Adult: 1 tablet for each dose; maximum 8 tablets per

day

STALEVO ® 200/50/200

Parkinson’s disease and end-of-dose motor fluctuations

not adequately controlled with levodopa and dopadecarboxylase inhibitor treatment

▶ BY MOUTH

▶ Adult: 1 tablet for each dose; maximum 7 tablets per

day

STALEVO ® 50/12.5/200

Parkinson’s disease and end-of-dose motor fluctuations

not adequately controlled with levodopa and dopadecarboxylase inhibitor treatment

▶ BY MOUTH

▶ Adult: 1 tablet for each dose; maximum 10 tablets per

day

STALEVO ® 75/18.75/200

Parkinson’s disease and end-of-dose motor fluctuations

not adequately controlled with levodopa and dopadecarboxylase inhibitor treatment

▶ BY MOUTH

▶ Adult: 1 tablet for each dose; maximum 10 tablets per

day

l INTERACTIONS → Appendix 1: carbidopa . entacapone . levodopa

l PRESCRIBING AND DISPENSING INFORMATION Patients

receiving standard-release co-careldopa or co-beneldopa

alone, initiate Stalevo ® at a dose that provides similar (or

slightly lower) amount of levodopa.

Patients with dyskinesia or receiving more than 800 mg

levodopa daily, introduce entacapone before transferring

to Stalevo ® (levodopa dose may need to be reduced by

10–30% initially).

Patients receiving entacapone and standard-release cocareldopa or co-beneldopa, initiate Stalevo ® at a dose that

provides similar (or slightly higher) amount of levodopa.

l PATIENT AND CARER ADVICE

Driving and skilled tasks Sudden onset of sleep Excessive

daytime sleepiness and sudden onset of sleep can occur

with carbidopa with entacapone and levodopa.

Patients starting treatment with these drugs should be

warned of the risk and of the need to exercise caution

when driving or operating machinery. Those who have

experienced excessive sedation or sudden onset of sleep

should refrain from driving or operating machines until

these effects have stopped occurring.

Management of excessive daytime sleepiness should

focus on the identification of an underlying cause, such as

depression or concomitant medication. Patients should be

counselled on improving sleep behaviour.

l MEDICINAL FORMS There can be variation in the licensing of

different medicines containing the same drug.

Tablet

CAUTIONARY AND ADVISORY LABELS 10, 14(urine reddish-brown),

25

▶ Stalevo (Orion Pharma (UK) Ltd)

Carbidopa 25 mg, Levodopa 100 mg, Entacapone 200 mg Stalevo

100mg/25mg/200mg tablets | 30 tablet P £20.79 DT = £20.79 | 100 tablet P £69.31 DT = £69.31

Carbidopa 18.75 mg, Levodopa 75 mg, Entacapone

200 mg Stalevo 75mg/18.75mg/200mg tablets | 30 tablet P £20.79 DT = £20.79 | 100 tablet P £69.31 DT = £69.31

Carbidopa 37.5 mg, Levodopa 150 mg, Entacapone

200 mg Stalevo 150mg/37.5mg/200mg tablets | 30 tablet P £20.79 DT = £20.79 | 100 tablet P £69.31 DT = £69.31

Carbidopa 12.5 mg, Levodopa 50 mg, Entacapone 200 mg Stalevo

50mg/12.5mg/200mg tablets | 30 tablet P £20.79 DT = £20.79 | 100 tablet P £69.31 DT = £69.31

Carbidopa 31.25 mg, Levodopa 125 mg, Entacapone

200 mg Stalevo 125mg/31.25mg/200mg tablets | 30 tablet P £20.79 DT = £20.79 | 100 tablet P £69.31 DT = £69.31

Carbidopa 43.75 mg, Levodopa 175 mg, Entacapone

200 mg Stalevo 175mg/43.75mg/200mg tablets | 30 tablet P £20.79 DT = £20.79 | 100 tablet P £69.31 DT = £69.31

Carbidopa 50 mg, Entacapone 200 mg, Levodopa 200 mg Stalevo

200mg/50mg/200mg tablets | 30 tablet P £20.79 DT = £20.79 | 100 tablet P £69.31 DT = £69.31

BNF 78 Parkinson’s disease 417

Nervous system

4

DOPAMINERGIC DRUGS › DOPAMINE RECEPTOR

AGONISTS

Amantadine hydrochloride 08-Feb-2019

l DRUG ACTION Amantadine is a weak dopamine agonist

with modest antiparkinsonian effects.

l INDICATIONS AND DOSE

Parkinson’s disease

▶ BY MOUTH

▶ Adult: 100 mg daily for 1 week, then increased to

100 mg twice daily, usually administered in

conjunction with other treatment. Some patients may

require higher doses; maximum 400 mg per day

▶ Elderly: 100 mg daily, adjusted according to response

Post-herpetic neuralgia

▶ BY MOUTH

▶ Adult: 100 mg twice daily for 14 days (continued for

another 14 days if necessary)

Treatment of influenza A (but not recommended)

▶ BY MOUTH

▶ Adult: 100 mg daily 4–5 days

Prophylaxis of influenza A (but not recommended)

▶ BY MOUTH

▶ Adult: 100 mg daily usually for 6 weeks or with

influenza vaccination for 2–3 weeks after vaccination

l CONTRA-INDICATIONS Epilepsy . history of gastric

ulceration

l CAUTIONS Confused or hallucinatory states . congestive

heart disease (may exacerbate oedema). elderly .tolerance

to the effects of amantadine may develop in Parkinson’s

disease

l INTERACTIONS → Appendix 1: dopamine receptor agonists

l SIDE-EFFECTS

▶ Common or very common Anxiety . appetite decreased . concentration impaired . confusion . constipation . depression . dizziness . dry mouth . hallucination . headache . hyperhidrosis . lethargy . mood altered . movement disorders . myalgia . nausea . palpitations . peripheral oedema . postural hypotension . skin reactions . sleep disorders . speech slurred . vision disorders . vomiting

▶ Uncommon Neuroleptic malignant-like syndrome . psychosis . seizure .tremor

▶ Rare or very rare Cardiovascular insufficiency . diarrhoea . eye disorders . eye inflammation . heart failure . leucopenia . photosensitivity reaction . urinary disorders

▶ Frequency not known Delirium

l PREGNANCY Avoid; toxicity in animal studies.

l BREAST FEEDING Avoid; present in milk; toxicity in infant

reported.

l HEPATIC IMPAIRMENT Manufacturer advises use with

caution in liver disorders.

l RENAL IMPAIRMENT Avoid if eGFR less than

15 mL/minute/1.73 m2

.

Dose adjustments Reduce dose.

l TREATMENT CESSATION Avoid abrupt withdrawal in

Parkinson’s disease.

l PATIENT AND CARER ADVICE

Driving and skilled tasks May affect performance of skilled

tasks (e.g. driving).

l NATIONAL FUNDING/ACCESS DECISIONS

NICE decisions

▶ Oseltamivir, amantadine (review) and zanamivir for the

prophylaxis of influenza (September 2008) NICE TA158

Amantadine is not recommended for prophylaxis of

influenza.

www.nice.org.uk/guidance/ta158

▶ Amantadine, oseltamivir and zanamivir for the treatment of

influenza (February 2009) NICE TA168

Amantadine is not recommended for treatment of

influenza.

www.nice.org.uk/guidance/ta168

l MEDICINAL FORMS There can be variation in the licensing of

different medicines containing the same drug. Forms available

from special-order manufacturers include: tablet

Oral solution

▶ Amantadine hydrochloride (Non-proprietary)

Amantadine hydrochloride 10 mg per 1 ml Amantadine 50mg/5ml

oral solution sugar free sugar-free | 150 ml P £118.00–£140.00

DT = £126.80

Capsule

▶ Amantadine hydrochloride (Non-proprietary)

Amantadine hydrochloride 100 mg Amantadine 100mg capsules | 14 capsule P £10.12–£10.24 | 56 capsule P £41.00 DT =

£40.93

Apomorphine hydrochloride 13-Jun-2018

l INDICATIONS AND DOSE

Refractory motor fluctuations in Parkinson’s disease (‘off’

episodes) inadequately controlled by co-beneldopa or

co-careldopa or other dopaminergics (for capable and

motivated patients) (under expert supervision)

▶ BY SUBCUTANEOUS INJECTION

▶ Adult: Initially 1 mg, dose to be administered at the

first sign of ‘off’ episode, then 2 mg after 30 minutes,

dose to be given if inadequate or no response following

initial dose, thereafter increase dose at minimum

40-minute intervals until satisfactory response

obtained, this determines threshold dose; usual dose

3–30 mg daily in divided doses (max. per dose 10 mg),

subcutaneous infusion may be preferable in those

requiring division of injections into more than

10 doses; maximum 100 mg per day

Refractory motor fluctuations in Parkinson’s disease (‘off’

episodes) inadequately controlled by co-beneldopa or

co-careldopa or other dopaminergics (in patients

requiring division into more than 10 injections daily)

(under expert supervision)

▶ BY CONTINUOUS SUBCUTANEOUS INFUSION

▶ Adult: Initially 1 mg/hour, adjusted according to

response, then increased in steps of up to

500 micrograms/hour, dose to be increased at intervals

not more often than every 4 hours; usual dose

1–4 mg/hour, alternatively usual dose

15–60 micrograms/kg/hour, change infusion site every

12 hours and give during waking hours only (tolerance

may occur unless there is a 4-hour treatment-free

period at night—24-hour infusions not recommended

unless severe night time symptoms); intermittent

bolus doses may be needed; maximum 100 mg per day

IMPORTANT SAFETY INFORMATION

IMPULSE CONTROL DISORDERS

Treatment with dopamine-receptor agonists are

associated with impulse control disorders, including

pathological gambling, binge eating, and hypersexuality.

Patients and their carers should be informed about the

risk of impulse control disorders. There is no evidence

that ergot- and non-ergot-derived dopamine-receptor

agonists differ in their propensity to cause impulse

control disorders, so switching between dopaminereceptor agonists to control these side-effects is not

recommended. If the patient develops an impulse

control disorder, the dopamine-receptor agonist or

levodopa should be withdrawn or the dose reduced until

the symptoms resolve.

418 Movement disorders BNF 78

Nervous system

4

l CONTRA-INDICATIONS Avoid if ‘on’ response to levodopa

marred by severe dyskinesia or dystonia . dementia . psychosis .respiratory depression

l CAUTIONS Cardiovascular disease . history of postural

hypotension (special care on initiation). neuropsychiatric

conditions . pulmonary disease . susceptibility to QTinterval prolongation

l INTERACTIONS → Appendix 1: dopamine receptor agonists

l SIDE-EFFECTS

▶ Common or very common Confusion . dizziness . drowsiness . hallucinations . nausea . psychiatric disorders . subcutaneous nodule . vomiting . yawning

▶ Uncommon Dyskinesia (may require discontinuation). dyspnoea . haemolytic anaemia . injection site necrosis . postural hypotension . skin reactions . sudden onset of

sleep .thrombocytopenia

▶ Rare or very rare Bronchospasm . eosinophilia . hypersensitivity

▶ Frequency not known Aggression . agitation . dopamine

dysregulation syndrome . eating disorders . pathological

gambling . peripheral oedema . sexual dysfunction . syncope

l ALLERGY AND CROSS-SENSITIVITY Contra-indicated if

history of hypersensitivity to opioids.

l PREGNANCY Avoid unless clearly necessary.

l BREAST FEEDING No information available; may suppress

lactation.

l HEPATIC IMPAIRMENT Manufacturer advises avoid in

hepatic insufficiency.

l RENAL IMPAIRMENT Use with caution.

l MONITORING REQUIREMENTS

▶ Monitor hepatic, haemopoietic, renal, and cardiovascular

function.

▶ With concomitant levodopa test initially and every 6 months

for haemolytic anaemia and thrombocytopenia

(development calls for specialist haematological care with

dose reduction and possible discontinuation).

l TREATMENT CESSATION Antiparkinsonian drug therapy

should never be stopped abruptly as this carries a small

risk of neuroleptic malignant syndrome.

l PATIENT AND CARER ADVICE Manufacturer advises

patients and their carers should be informed of the risk of

developing dopamine dysregulation syndrome; addictionlike symptoms should be reported.

Driving and skilled tasks Sudden onset of sleep Excessive

daytime sleepiness and sudden onset of sleep can occur

with dopamine-receptor agonists.

Patients starting treatment with these drugs should be

warned of the risk and of the need to exercise caution

when driving or operating machinery. Those who have

experienced excessive sedation or sudden onset of sleep

should refrain from driving or operating machines until

these effects have stopped occurring.

Management of excessive daytime sleepiness should

focus on the identification of an underlying cause, such as

depression or concomitant medication. Patients should be

counselled on improving sleep behaviour.

Drugs and driving Prescribers and other healthcare

professionals should advise patients if treatment is likely

to affect their ability to perform skilled tasks (e.g. driving).

This applies especially to drugs with sedative effects;

patients should be warned that these effects are increased

by alcohol. General information about a patient’s fitness to

drive is available from the Driver and Vehicle Licensing

Agency at www.dvla.gov.uk.

2015 legislation regarding driving whilst taking certain

drugs, may also apply to apomorphine, see Drugs and

driving under Guidance on prescribing p. 1.

Hypotensive reactions Hypotensive reactions can occur in

some patients taking dopamine-receptor agonists; these

can be particularly problematic during the first few days of

treatment and care should be exercised when driving or

operating machinery.

l MEDICINAL FORMS There can be variation in the licensing of

different medicines containing the same drug. Forms available

from special-order manufacturers include: solution for

injection, solution for infusion

Solution for injection

CAUTIONARY AND ADVISORY LABELS 10

EXCIPIENTS: May contain Sulfites

▶ APO-go (Britannia Pharmaceuticals Ltd)

Apomorphine hydrochloride 10 mg per 1 ml APO-go 50mg/5ml

solution for injection ampoules | 5 ampoule P £73.11 DT = £73.11

▶ APO-go Pen (Britannia Pharmaceuticals Ltd)

Apomorphine hydrochloride 10 mg per 1 ml APO-go PEN

30mg/3ml solution for injection | 5 pre-filled disposable

injection P £123.91 DT = £123.91

▶ Dacepton (Ever Pharma UK Ltd)

Apomorphine hydrochloride hemihydrate 10 mg per

1 ml Dacepton 30mg/3ml solution for injection cartridges | 5 cartridge P £123.00

Solution for infusion

CAUTIONARY AND ADVISORY LABELS 10

EXCIPIENTS: May contain Sulfites

▶ APO-go PFS (Britannia Pharmaceuticals Ltd)

Apomorphine hydrochloride 5 mg per 1 ml APO-go PFS

50mg/10ml solution for infusion pre-filled syringes | 5 pre-filled

disposable injection P £73.11 DT = £73.11

▶ Dacepton (Ever Pharma UK Ltd)

Apomorphine hydrochloride hemihydrate 5 mg per

1 ml Dacepton 100mg/20ml solution for infusion vials | 5 vial P £145.00

Bromocriptine 09-Jun-2018

l DRUG ACTION Bromocriptine is a stimulant of dopamine

receptors in the brain; it also inhibits release of prolactin

by the pituitary.

l INDICATIONS AND DOSE

Prevention of lactation

▶ BY MOUTH

▶ Adult: Initially 2.5 mg daily for 1 day, then 2.5 mg twice

daily for 14 days

Suppression of lactation

▶ BY MOUTH

▶ Adult: Initially 2.5 mg daily for 2–3 days, then 2.5 mg

twice daily for 14 days

Hypogonadism | Galactorrhoea | Infertility

▶ BY MOUTH

▶ Adult: Initially 1–1.25 mg daily, dose to be taken at

bedtime, increase dose gradually; usual dose 7.5 mg

daily in divided doses, increased if necessary up to

30 mg daily, usual dose in infertility without

hyperprolactinaemia is 2.5 mg twice daily

Acromegaly

▶ BY MOUTH

▶ Adult: Initially 1–1.25 mg daily, dose to be taken at

bedtime, then increased to 5 mg every 6 hours, increase

dose gradually

Prolactinoma

▶ BY MOUTH

▶ Adult: Initially 1–1.25 mg daily, dose to be taken at

bedtime, then increased to 5 mg every 6 hours, increase

dose gradually. Occasionally patients may require up to

30 mg daily

Parkinson’s disease

▶ BY MOUTH

▶ Adult: Initially 1–1.25 mg daily for 1 week, dose to be

taken at night, then 2–2.5 mg daily for 1 week, dose to

be taken at night, then 2.5 mg twice daily for 1 week,

then 2.5 mg 3 times a day for 1 week, then continued→

BNF 78 Parkinson’s disease 419

Nervous system

4

increased in steps of 2.5 mg every 3–14 days, adjusted

according to response; maintenance 10–30 mg daily

IMPORTANT SAFETY INFORMATION

FIBROTIC REACTIONS

Bromocriptine has been associated with pulmonary,

retroperitoneal, and pericardial fibrotic reactions.

Exclude cardiac valvulopathy with echocardiography

before starting treatment with these ergot derivatives for

Parkinson’s disease or chronic endocrine disorders

(excludes suppression of lactation); it may also be

appropriate to measure the erythrocyte sedimentation

rate and serum creatinine and to obtain a chest X-ray.

Patients should be monitored for dyspnoea, persistent

cough, chest pain, cardiac failure, and abdominal pain or

tenderness. If long-term treatment is expected, then

lung-function tests may also be helpful.

IMPULSE CONTROL DISORDERS

Treatment with dopamine-receptor agonists are

associated with impulse control disorders, including

pathological gambling, binge eating, and hypersexuality.

Patients and their carers should be informed about the

risk of impulse control disorders. There is no evidence

that ergot- and non-ergot-derived dopamine-receptor

agonists differ in their propensity to cause impulse

control disorders, so switching between dopaminereceptor agonists to control these side-effects is not

recommended. If the patient develops an impulse

control disorder, the dopamine-receptor agonist should

be withdrawn or the dose reduced until the symptoms

resolve.

l CONTRA-INDICATIONS Avoid in pre-eclampsia . cardiac

valvulopathy (exclude before treatment). hypertension in

postpartum women or in puerperium

CONTRA-INDICATIONS, FURTHER INFORMATION

▶ Postpartum or puerperium Should not be used postpartum or

in puerperium in women with high blood pressure,

coronary artery disease, or symptoms (or history) of

serious mental disorder; monitor blood pressure carefully

(especially during first few days) in postpartum women.

Very rarely hypertension, myocardial infarction, seizures

or stroke (both sometimes preceded by severe headache or

visual disturbances), and mental disorders have been

reported in postpartum women given bromocriptine for

lactation suppression—caution with antihypertensive

therapy and avoid other ergot alkaloids. Discontinue

immediately if hypertension, unremitting headache, or

signs of CNS toxicity develop.

l CAUTIONS Cardiovascular disease . history of peptic ulcer

(particularly in acromegalic patients). history of serious

mental disorders (especially psychotic disorders). Raynaud’s syndrome

CAUTIONS, FURTHER INFORMATION

▶ Hyperprolactinemic patients In hyperprolactinaemic patients,

the source of the hyperprolactinaemia should be

established (i.e. exclude pituitary tumour before

treatment).

l INTERACTIONS → Appendix 1: dopamine receptor agonists

l SIDE-EFFECTS

▶ Common or very common Constipation . drowsiness . headache . nasal congestion . nausea

▶ Uncommon Allergic dermatitis . alopecia . confusion . dizziness . dry mouth . fatigue . hallucination . hypotension . leg cramps . movement disorders . vomiting

▶ Rare or very rare Abdominal pain . arrhythmias . cardiac

valvulopathy . diarrhoea . dyspnoea . gastrointestinal

disorders . gastrointestinal haemorrhage . neuroleptic

malignant-like syndrome . pallor. paraesthesia . pericardial effusion . pericarditis . peripheral oedema .

psychotic disorder.respiratory disorders . sleep disorders . tinnitus . vision disorders

▶ Frequency not known Eating disorders . hypertension . myocardial infarction . pathological gambling . psychiatric

disorders . seizure . sexual dysfunction . stroke

SIDE-EFFECTS, FURTHER INFORMATION Treatment should

be withdrawn if gastro-intestinal bleeding occurs.

l ALLERGY AND CROSS-SENSITIVITY Bromocriptine should

not be used in patients with hypersensitivity to ergot

alkaloids.

l CONCEPTION AND CONTRACEPTION Caution—provide

contraceptive advice if appropriate (oral contraceptives

may increase prolactin concentration).

l BREAST FEEDING Suppresses lactation; avoid breast

feeding for about 5 days if lactation prevention fails.

l HEPATIC IMPAIRMENT

Dose adjustments Manufacturer advises dose adjustment

may be necessary—risk of increased plasma concentration.

l MONITORING REQUIREMENTS

▶ Specialist evaluation—monitor for pituitary enlargement,

particularly during pregnancy; monitor visual field to

detect secondary field loss in macroprolactinoma.

▶ Monitor for fibrotic disease.

▶ Monitor blood pressure for a few days after starting

treatment and following dosage increase.

l TREATMENT CESSATION Antiparkinsonian drug therapy

should never be stopped abruptly as this carries a small

risk of neuroleptic malignant syndrome.

l PATIENT AND CARER ADVICE

Driving and skilled tasks Sudden onset of sleep Excessive

daytime sleepiness and sudden onset of sleep can occur

with dopamine-receptor agonists.

Patients starting treatment with these drugs should be

warned of the risk and of the need to exercise caution

when driving or operating machinery. Those who have

experienced excessive sedation or sudden onset of sleep

should refrain from driving or operating machines until

these effects have stopped occurring.

Management of excessive daytime sleepiness should

focus on the identification of an underlying cause, such as

depression or concomitant medication. Patients should be

counselled on improving sleep behaviour.

Hypotensive reactions Hypotensive reactions can occur in

some patients taking dopamine-receptor agonists; these

can be particularly problematic during the first few days of

treatment and care should be exercised when driving or

operating machinery.

l MEDICINAL FORMS There can be variation in the licensing of

different medicines containing the same drug. Forms available

from special-order manufacturers include: oral suspension

Tablet

CAUTIONARY AND ADVISORY LABELS 10, 21

▶ Bromocriptine (Non-proprietary)

Bromocriptine (as Bromocriptine mesilate) 1 mg Bromocriptine

1mg tablets | 100 tablet P £67.66 DT = £67.66

Bromocriptine (as Bromocriptine mesilate) 2.5 mg Bromocriptine

2.5mg tablets | 30 tablet P £74.97 DT = £74.97

Capsule

CAUTIONARY AND ADVISORY LABELS 10, 21

▶ Parlodel (Meda Pharmaceuticals Ltd)

Bromocriptine (as Bromocriptine mesilate) 5 mg Parlodel 5mg

capsules | 100 capsule P £37.57 DT = £37.57

Bromocriptine (as Bromocriptine mesilate) 10 mg Parlodel 10mg

capsules | 100 capsule P £69.50 DT = £69.50

420 Movement disorders BNF 78

Nervous system

4

Cabergoline 26-Jun-2018

l DRUG ACTION Cabergoline is a stimulant of dopamine

receptors in the brain and it also inhibits release of

prolactin by the pituitary.

l INDICATIONS AND DOSE

Prevention of lactation

▶ BY MOUTH

▶ Adult: 1 mg, to be taken as a single dose on the first day

postpartum

Suppression of established lactation

▶ BY MOUTH

▶ Adult: 250 micrograms every 12 hours for 2 days

Hyperprolactinaemic disorders

▶ BY MOUTH

▶ Adult: Initially 500 micrograms once weekly, dose may

be taken as a single dose or as 2 divided doses on

separate days, then increased in steps of

500 micrograms every month until optimal therapeutic

response reached, increase dose following monthly

monitoring of serum prolactin levels; usual dose

0.25–2 mg once weekly, usually 1 mg weekly; reduce

initial dose and increase more gradually if patient

intolerant, doses over 1 mg weekly to be given as

divided dose; maximum 4.5 mg per week

Alone or as adjunct to co-beneldopa or co-careldopa in

Parkinson’s disease where dopamine-receptor agonists

other than ergot derivative not appropriate

▶ BY MOUTH

▶ Adult: Initially 1 mg daily, then increased in steps of

0.5–1 mg every 7–14 days, concurrent dose of levodopa

may be decreased gradually while dose of cabergoline is

increased; maximum 3 mg per day

IMPORTANT SAFETY INFORMATION

FIBROTIC REACTIONS

Cabergoline has been associated with pulmonary,

retroperitoneal, and pericardial fibrotic reactions.

Exclude cardiac valvulopathy with echocardiography

before starting treatment with these ergot derivatives for

Parkinson’s disease or chronic endocrine disorders

(excludes suppression of lactation); it may also be

appropriate to measure the erythrocyte sedimentation

rate and serum creatinine and to obtain a chest X-ray.

Patients should be monitored for dyspnoea, persistent

cough, chest pain, cardiac failure, and abdominal pain or

tenderness. If long-term treatment is expected, then

lung-function tests may also be helpful. Patients taking

cabergoline should be regularly monitored for cardiac

fibrosis by echocardiography (within 3–6 months of

initiating treatment and subsequently at 6–12 month

intervals).

IMPULSE CONTROL DISORDERS

Treatment with dopamine-receptor agonists are

associated with impulse control disorders, including

pathological gambling, binge eating, and hypersexuality.

Patients and their carers should be informed about the

risk of impulse control disorders. There is no evidence

that ergot- and non-ergot-derived dopamine-receptor

agonists differ in their propensity to cause impulse

control disorders, so switching between dopaminereceptor agonists to control these side-effects is not

recommended. If the patient develops an impulse

control disorder, the dopamine-receptor agonist should

be withdrawn or the dose reduced until the symptoms

resolve.

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