Voltarol (Diclofenac) — Patient Information (UK)

Voltarol contains diclofenac, a medicine from the group known as non-steroidal anti-inflammatory drugs (NSAIDs). It is used to reduce pain, inflammation, and swelling in a range of conditions.

This guide explains how Voltarol works, how it is used, important safety information, and practical tips for UK patients. Always follow the instructions on your pack or label, and consult a healthcare professional if you are unsure which strength or form is right for you.

Basic product information

How Voltarol works (mechanism of action)

Diclofenac works by blocking enzymes called cyclo-oxygenases (COX-1 and COX-2). These enzymes are involved in making prostaglandins, substances that contribute to pain, inflammation, and fever.

• Less prostaglandin production helps reduce pain and swelling.
• The effect is strongest when the inflammation is driven by prostaglandins.

Pharmacokinetics (what the body does with diclofenac)

How quickly diclofenac takes effect and how long it stays in the body depends on the formulation (for example, tablet vs gel) and the specific product. Below is an overview that applies to diclofenac in general.

• Absorption: Oral products are absorbed through the digestive system; topical products (gels/emulgels) are absorbed through the skin at the area of application.
• Distribution: Diclofenac spreads through the body and binds to blood proteins.
• Metabolism: Mainly processed in the liver.
• Elimination: Metabolites leave the body primarily through the kidneys (urine) and to a lesser extent via the gut.

Because liver and kidney function can affect diclofenac handling, people with liver or kidney disease may need extra monitoring or dose adjustments from a clinician.

Typical use in the UK

Voltarol is commonly used to treat pain and inflammation from problems such as:

• Muscle and joint pain (including sprains and strains)
• Back pain and related musculoskeletal discomfort
• Sports injuries and localised inflammation
• Osteoarthritis symptoms in some people (depending on the product form)
• Rheumatic aches and other inflammatory joint conditions (as advised)
• Tendon or ligament pain (often suited to topical formulations)

The best choice of product form (tablet, gel, patch) depends on the condition, the location of the pain, and your overall health.

Indications (when it may be suitable)

Indications vary by product type and strength. In the UK, diclofenac NSAIDs are used for:

• Pain and inflammation in musculoskeletal conditions
• Localised soft tissue injury and inflammation (commonly topical)
• Joint pain and stiffness in some chronic conditions (commonly oral)
• Inflammation-related pain where an NSAID is appropriate

If your symptoms are severe, worsening, or last beyond a few days, seek medical advice. Persistent pain may require assessment for a different cause.

Timing and how to use

General timing guidance

• Use the lowest effective dose for the shortest time needed.
• Consider using doses spaced evenly across the day (for oral forms) according to the label instructions.
• If you have ongoing symptoms, discuss with a healthcare professional rather than extending treatment indefinitely.

Using topical Voltarol (gel/emulgel/patch where available)

• Apply to clean, dry skin over the painful area.
• Wash hands before and after application unless the hands are the treated area.
• Do not apply to broken skin or areas with infection.
• Covering the area with tight bandages or occlusive dressings may increase absorption—follow product instructions.

Using oral Voltarol (tablets/capsules where available)

• Take with water, typically with a meal if advised for your product or if you have a sensitive stomach.
• Do not exceed the recommended maximum daily dose.

Food interactions (what to consider)

Food can influence how quickly oral diclofenac is absorbed, and it may help reduce stomach irritation. The exact effect depends on the formulation (for example, immediate-release vs gastro-resistant).

• Taking with food may reduce the risk of stomach upset.
• Alcohol with NSAIDs (see below) can increase the risk of stomach bleeding—avoid or keep to a minimum.
• Gastro-sensitive conditions: If you have a history of ulceration or indigestion, discuss NSAID use with a clinician before starting.

Alcohol interactions

Drinking alcohol while taking diclofenac can increase the risk of gastrointestinal side effects, including stomach irritation and bleeding. If you use Voltarol, it is generally safest to:

• Avoid alcohol if you are using higher doses or for longer periods.
• If you do drink, keep it to small amounts and consider whether your stomach tolerates the combination.

Stop and seek urgent help if you develop symptoms of bleeding, such as black stools or vomiting blood (or material that looks like coffee grounds).

Medicine interactions (important)

Diclofenac can interact with other medicines, which may increase side effects or reduce effectiveness. If any of the following apply, check with a healthcare professional or pharmacist before using Voltarol:

Common interaction categories

• Other NSAIDs (including ibuprofen, naproxen, aspirin for pain): avoid combining unless advised. Using more than one NSAID increases the risk of stomach and kidney problems.
• Anticoagulants (e.g., warfarin) and antiplatelet agents (e.g., clopidogrel): NSAIDs may increase bleeding risk.
• Diuretics (water tablets) and medicines affecting kidney function: NSAIDs can affect kidney blood flow and may worsen kidney problems.
• ACE inhibitors / ARBs (e.g., lisinopril, ramipril, losartan, valsartan): the combination with NSAIDs can increase risk of kidney issues.
• Oral corticosteroids (e.g., prednisolone): may increase risk of stomach ulceration/bleeding.
• SSRIs / SNRIs antidepressants (e.g., sertraline, citalopram, venlafaxine, duloxetine): may increase GI bleeding risk when combined with NSAIDs.
• Lithium and methotrexate: NSAIDs can increase levels of these medicines.
• Digoxin and some medicines for the heart: levels and effects may be influenced.
• Diabetes medicines (for example, insulin, sulfonylureas): NSAIDs may alter blood glucose control in some people.

If you take regular medicines, it can be helpful to keep a list and discuss it with a pharmacist. For topical diclofenac, interactions are usually less pronounced than with oral NSAIDs, but they can still occur, especially if used extensively or for long periods.

Dosing (general guidance)

The exact dose depends on the product strength and formulation (oral vs topical). Always follow the dosage instructions on your specific Voltarol pack.

Oral diclofenac

Oral diclofenac doses vary widely between products (including strengths and release profiles). As a general rule:

• Adults should use the dose stated on the pack.
• Do not exceed the maximum daily dose listed by the manufacturer.
• Use for the shortest time required to control symptoms.

Topical diclofenac (gel/emulgel/patch)

• Apply only to the affected area.
• Use the quantity described in the pack (e.g., based on cm of gel or patch area).
• Do not apply more frequently than recommended.
• Avoid applying heat to the area during treatment unless advised, as it may increase absorption.

Missed dose

If you miss a dose, apply/take it when you remember, but do not take extra to make up for it. Follow the product label for timing and maximum daily use.

Safety profile: who should take care

Seek medical advice before using diclofenac if you have

• A history of stomach ulcers, bleeding, or perforation
• Known heart disease, stroke, or risk factors for cardiovascular problems
• Kidney disease or reduced kidney function
• Liver disease
• Asthma triggered by aspirin/NSAIDs
• Uncontrolled high blood pressure
• Are taking medicines that increase bleeding risk (e.g., anticoagulants)
• Are pregnant, especially later in pregnancy (NSAIDs can be harmful later on)

Common side effects

Side effects can vary by form and duration of use.

• Stomach-related: indigestion, heartburn, nausea (more common with oral diclofenac)
• Skin reactions (topical): redness, itching, rash, dryness
• Headache or dizziness in some people

Serious warnings — stop and get urgent help

Contact urgent care or seek emergency medical help if you develop:

• Signs of allergy: swelling of the face/lips, wheezing, severe rash, or difficulty breathing
• Signs of stomach bleeding: black/tarry stools, vomiting blood, severe abdominal pain
• Chest pain, sudden shortness of breath, or symptoms suggesting a stroke
• Severe skin reactions (rare but serious): blistering, peeling, or widespread rash with fever
• Reduced urination or signs of kidney problems

Cardiovascular risk (important NSAID consideration)

NSAIDs, including diclofenac, may be associated with an increased risk of cardiovascular events (such as heart attack or stroke), particularly at higher doses and longer durations. If you have existing cardiovascular risk, discuss options with a clinician and use the lowest effective dose for the shortest possible time.

Practical use tips

• Choose the right form for the problem: topical diclofenac can be useful for localised aches; oral forms may be considered for broader pain if appropriate.
• Support recovery: gentle movement, rest from aggravating activities, and—if relevant—physiotherapy exercises can improve outcomes.
• Protect your stomach: if you are using an oral product and your stomach is sensitive, follow pack instructions and consider taking with food.
• Avoid doubling up: do not take another NSAID (e.g., ibuprofen) at the same time unless advised.
• Watch for skin irritation with topical products: stop and seek advice if a rash develops where the gel/patch is applied.
• Be careful with heat: avoid heating pads/hot water bottles directly on the treated area.
• Check your total daily NSAID use: some cold/flu products may contain pain-relieving NSAIDs or related ingredients.

How long can you use Voltarol?

For self-care, it is generally recommended to use pain relief for the shortest time needed. If symptoms do not improve after a few days, worsen, or keep returning, seek professional advice to rule out underlying causes and to discuss safer long-term strategies.

Alternative options for pain relief

Depending on your condition and personal risk factors, alternatives may include:

Other topical treatments

• Topical NSAIDs other than diclofenac (availability varies)
• Counter-irritant gels/creams (e.g., menthol-based) for some types of muscular pain

Oral options

• Paracetamol (acetaminophen) for pain relief where appropriate
• Other NSAIDs may be considered by a pharmacist or clinician depending on your risk profile

Non-medicine approaches

• Physiotherapy or exercise therapy
• Heat or cold packs (with care—avoid heat on topical NSAID areas)
• Weight management and ergonomic adjustments
• For certain conditions, specialist pain management approaches

UK market and legal context (general)

In the UK, medicines containing diclofenac are supplied under different classifications and product licences depending on strength and formulation. Some diclofenac products are available in pharmacies and may be classed for pharmacy supply (or sold under specific conditions), while other strengths may require additional professional involvement.

Regulatory guidance emphasises:

• Clear labelling and patient information about dose limits and safety
• Warnings about gastrointestinal and cardiovascular risks
• Advice to use the lowest effective dose for the shortest duration

If you are buying Voltarol online, ensure the product is from a reputable source and matches the description on the pack you would normally use.

Recent guidance and safety updates (what patients should know)

Ongoing UK and European regulatory review has continued to highlight the safety profile of NSAIDs, particularly:

• Minimising exposure (shortest duration and lowest effective dose)
• Avoiding NSAID “stacking” (using more than one NSAID)
• Extra caution in people with high cardiovascular risk and in those with history of ulcers/bleeding
• Care with combinations that increase bleeding or kidney risk

Packaging and advice may vary between products. Always follow the instructions in your specific Voltarol pack.

Delivery and availability (UK)

Voltarol (diclofenac) may be available through UK online pharmacies and retailers, subject to product type, licence, and local supply rules. Delivery times depend on stock location, courier service, and whether the item is a standard or controlled/limited supply product.

• Availability: Common strengths and topical formats are often in regular stock.
• Delivery: Many UK pharmacies offer next-day or standard delivery options depending on order time.
• Packaging: Medicines are typically delivered in original packaging with patient instructions.

If you need delivery by a certain date, check the estimated delivery window at checkout.

FAQ

1) Is Voltarol the same as diclofenac?

Yes. Voltarol is a brand name that contains diclofenac. The exact strength depends on the product you choose (and the form, such as gel or oral dosage).

2) How quickly does Voltarol work?

Topical diclofenac may start to ease pain within hours for some people, while oral forms can work more quickly for many symptoms. Individual response varies, and consistent use as directed can be important for inflammatory pain.

3) Can I use Voltarol with paracetamol?

Generally, paracetamol and NSAIDs like diclofenac can be used together for pain, but you should still follow pack instructions and avoid exceeding recommended daily doses. If you are unsure—especially if you have liver disease—ask a pharmacist.

4) Can I use Voltarol if I have asthma?

Some people with asthma can react to aspirin or NSAIDs. If you have a history of asthma triggered by NSAIDs, avoid diclofenac and seek advice. If your asthma is well controlled, still be cautious and stop if breathing difficulties occur.

5) Are there any foods I should avoid?

There are no specific “forbidden foods,” but taking oral diclofenac with food may help reduce stomach upset. Always follow the instructions on your pack. Avoid excessive alcohol, as it increases stomach and bleeding risks.

6) Can I drink alcohol while using Voltarol?

It is safest to avoid or minimise alcohol. Alcohol can increase the risk of stomach irritation and bleeding when combined with NSAIDs.

7) Can I use Voltarol for long periods?

For self-treatment, aim for the shortest time needed. If you need it beyond a few days, or symptoms keep returning, seek advice to confirm the cause and discuss safer longer-term options.

8) What should I do if I get a rash or skin irritation with the gel?

Stop using the product on that area. If the rash is severe, widespread, or you have signs of allergy (swelling or breathing difficulty), seek urgent medical help.

9) Is topical diclofenac safer than tablets?

Topical diclofenac generally leads to lower whole-body exposure than oral NSAIDs, which may reduce certain risks. However, systemic side effects can still occur—particularly with excessive use, long duration, broken skin application, or when used over large areas.

10) When should I get medical advice urgently?

Seek urgent help if you have symptoms such as chest pain, sudden weakness/numbness, vomiting blood, black stools, severe allergic reactions, or severe worsening pain.

Summary

Voltarol (diclofenac) is an NSAID used to relieve pain and inflammation in musculoskeletal conditions. It works by reducing prostaglandins through COX enzyme inhibition. For the best balance of benefit and safety, use the lowest effective dose and the shortest time needed, follow label instructions, and be mindful of food, alcohol, and medicine interactions.