Ropinirole

What is ropinirole?

Ropinirole is a prescription-only dopamine agonist – a type of medicine that mimics the action of dopamine, a natural chemical in the brain. It is used to manage neurological conditions where dopamine levels are low or where dopamine signalling is disrupted. It is available under brand names such as Requip, Ipinnia, and Repinex[1]. 

What is ropinirole used for?

Ropinirole is prescribed to treat two main conditions[1]: 

• Parkinson’s disease – to help manage symptoms such as tremors, stiffness, and difficulty with movement 

• Restless Legs Syndrome (RLS) – particularly in moderate to severe cases where there is an uncontrollable urge to move the legs, often with discomfort, especially in the evening or at night 

How does ropinirole work?

Ropinirole works by stimulating dopamine receptors in the brain. Dopamine is a neurotransmitter involved in movement and mood regulation[1]. 

In Parkinson’s disease, where dopamine levels are significantly reduced, ropinirole helps improve motor function by mimicking dopamine’s effects. In people with RLS, it helps calm the urge to move and reduce sensations of discomfort in the legs[1].  

Who can take ropinirole?

Ropinirole is suitable for adults aged 18 and over, but there are some restrictions. You can usually take ropinirole if you’ve been diagnosed with Parkinson’s disease or RLS and are not allergic to ropinirole or any of its ingredients. You may also not be able to take it if you[1]: 

• Have severe liver or kidney problems 

• Have a history of mental health issues, psychosis, hallucinations, or compulsive behaviours 

• Have a serious heart condition or blood pressure problems 

• Experience sleep disorders or sudden sleep episodes 

• Are pregnant or breastfeeding – only use under medical supervision 

Please tell your doctor or pharmacist about any conditions you may have or medication you take before you start treatment, and always follow the instructions in the Patient Information Leaflet[2].  

What is the typical dosage of ropinirole?

The dose of ropinirole depends on the condition being treated and the form prescribed (standard immediate-release tablets in 0.25mg, 0.5mg, 1mg, 2mg, and 5mg strengths or slow-release tablets in 2mg, 3mg, 4mg, 6mg, or 8mg strengths)[1]. 

For Parkinson’s disease[1]: 

• Initial dose: 0.25mg three times daily 

• Dose is increased gradually, depending on response and side effects 

• Maintenance dose may be up to a maximum 24mg per day in prolonged-release form 

For Restless Legs Syndrome[1]: 

• Initial dose: 0.25mg once daily, usually 1 to 3 hours before bedtime 

• Dose may be increased slowly if needed, up to a usual maximum of 4mg per day 

Your doctor or pharmacist will decide the most appropriate dose and formulation for your needs. 

How do you take ropinirole?

Ropinirole should be taken exactly as directed by your doctor. It can be taken with or without food – taking it with food may help reduce nausea. Swallow the tablets whole with a glass of water and try to take it at the same time each day. Do not crush or chew prolonged-release tablets[1]. 

Can you stop taking ropinirole?

No, you should not stop taking ropinirole suddenly unless instructed by your doctor or pharmacist. Stopping abruptly may worsen symptoms or cause withdrawal effects. If you need to come off the medication, your dose will be reduced gradually under medical supervision[1]. 

What do you do if you take too much ropinirole?

Taking too much ropinirole can cause a range of symptoms, including nausea, vomiting, dizziness, fainting, hallucinations or confusion. If you suspect an overdose, seek immediate medical advice or call NHS 111[1]. 

What do you do if you forget to take ropinirole?

If you miss a dose, take it as soon as you remember. If it’s almost time for your next dose, skip the missed one. Do not take two doses at the same time to make up for the missed dose[1]. 

What medicines can’t you take with ropinirole?

Diltiazem may interact with the following substances[1]: 

• Beta-blockers (e.g. atenolol) 

• Statins (e.g. simvastatin) 

• Digoxin 

• Amiodarone 

• Antifungals (e.g. itraconazole, ketoconazole) 

• HIV or hepatitis C medication 

• Immunosuppressants (e.g. ciclosporin, tacrolimus) 

• Antibiotics (e.g. rifampicin, clarithromycin, erythromycin) 

• Epilepsy medication (e.g. carbamazepine, phenytoin) 

• Herbal supplements such as St John’s wort 

• Medicines for erectile dysfunction such as tadalafil 

Please note this is not a complete list, always inform your doctor or pharmacist about all medications and supplements you take before you start a new medicine, and follow the instructions in the Patient Information Leaflet[2]. 

What are the side effects of ropinirole?

Like all medicines, ropinirole may cause side effects. These are usually mild but can be more serious in some cases. The most common side effects include[1]: 

• Nausea or stomach discomfort 

• Dizziness or light-headedness 

• Sleepiness or sudden drowsiness 

• Hallucinations (seeing or hearing things that aren’t there) 

• Swelling in the legs or ankles 

• Uncontrollable twitching or twisting movements 

• Low blood pressure, especially on standing up 

Serious but rare side effects include[1]: 

• Sudden sleep attacks during daily activities, including driving 

• Fainting 

• Swollen legs, feet, or hands 

• Restless legs syndrome symptoms worsen 

• Impulse control disorder (e.g. binge eating, gambling, shopping  or an unusually high sex drive) 

• Hallucinations, delusions, and paranoia 

You should contact your GP if you experience any of these symptoms. In rare cases, the medicine may cause a serious allergic reaction (anaphylaxis). You should call 999 or visit A&E immediately if you believe this is happening[1]. 

Symptoms of anaphylaxis include[1]:  

• Difficulty breathing  

• Tightness in throat and chest  

• Swelling of the tongue or throat  

• Feeling faint or dizzy  

• Blue/grey skin or lips  

• Loss of consciousness 

If you experience any side effects, including those not listed, you are encouraged to report them via the Yellow Card Scheme or contact your doctor, pharmacist, or nurse. This information is intended as a summary for general awareness and does not replace professional medical advice. 

The information provided in the side effects section is not a comprehensive list of all possible side effects associated with this medication. For a complete list of side effects, please refer to the Patient Information Leaflet (PIL) provided with your medication or consult your healthcare professional[2]. 

Frequently asked questions about ropinirole

How long does ropinirole take to work? 
Some people notice improvement within a few days, but full effects may take several weeks[1]. 

Can I drink alcohol while taking ropinirole? 
It’s best to limit or avoid alcohol, as it can increase drowsiness and dizziness[1]. 

Can I drive while taking ropinirole? 
Not if you experience drowsiness, sudden sleep attacks, or blurred vision. Discuss with your doctor or pharmacist[1]. 

Can I take ropinirole during pregnancy? 
Only if clearly needed and prescribed by your doctor. Safety in pregnancy is not well established[1]. 

Does it interact with herbal supplements? 
Possibly. Always consult your pharmacist or doctor before taking supplements alongside ropinirole[1]. 

Will ropinirole affect my contraception?  
It doesn’t stop contraception working, but the oestrogen in some contraceptives can increase the amount of ropinirole in your body. Speak to your pharmacist or doctor[1]. 

What’s the difference between immediate-release and prolonged-release ropinirole? 
Immediate-release is taken multiple times a day. Prolonged-release provides a steadier effect and is usually taken once daily[1]. 

For the official NHS guide for ropinirole, visit their website.