Dalacin (Clindamycin)

What Is Dalacin and How Does This Clindamycin Antibiotic Treat Infections?

Dalacin is a brand-name medicine containing clindamycin, a lincosamide antibiotic used to treat a range of bacterial infections. It is available in several formulations — including topical cream and oral capsules — making it a versatile option when a prescriber determines that a clindamycin antibiotic is the right choice for your condition. Bacterial infections don't always respond to the same treatments, and that's exactly why having targeted options matters. If you're managing a skin condition alongside your treatment, you may also find our skin care collection useful for supporting your skin's recovery.

Clindamycin has been used clinically for decades and is listed in the British National Formulary (BNF) as a treatment for susceptible bacterial infections including skin and soft tissue infections, bone infections, and certain gynaecological infections. It is a prescription-only medicine in the UK, meaning you'll need a valid prescription before it can be dispensed.

How Does Dalacin Work Against Bacterial Infections?

Clindamycin works by targeting the bacteria directly at the cellular level. Here's how the mechanism unfolds:

• Clindamycin binds to the 50S subunit of the bacterial ribosome.
• This binding blocks the translocation step of protein synthesis.
• Without the ability to produce essential proteins, bacteria cannot grow or replicate.
• At standard therapeutic doses, clindamycin is primarily bacteriostatic — it stops bacterial growth rather than killing bacteria outright.
• At higher concentrations, it may exhibit bactericidal activity against certain organisms.

This targeted mechanism means clindamycin is particularly effective against Gram-positive organisms such as Staphylococcus aureus and Streptococcus species, as well as many anaerobic bacteria. It does not work against viral infections — so it won't help with colds or flu.

Who Is Dalacin Suitable For?

Dalacin is prescribed for adults and, in certain formulations, for children over 12 years. Your prescriber will assess whether it's appropriate based on your medical history, the type of infection, and any other medicines you're taking. It is commonly indicated for:

• Skin and soft tissue infections caused by susceptible bacteria
• Bone and joint infections (osteomyelitis)
• Gynaecological infections including bacterial vaginosis (topical formulation)
• Dental infections where first-line antibiotics are unsuitable

It is not suitable for everyone. People with a history of antibiotic-associated colitis, inflammatory bowel disease, or known hypersensitivity to clindamycin or lincomycin should not use this medicine. Always disclose your full medical history to your prescriber.

How Does Dalacin Compare to Other Antibiotic Options?

How Should Dalacin Be Stored and Who Should Take Extra Care?

Store Dalacin below 25°C, away from direct sunlight, and keep it out of the reach and sight of children. Do not use the product after the expiry date printed on the packaging. If you're using the topical cream, keep the tube tightly closed when not in use. For those browsing related treatments, our dental products collection includes options relevant to oral bacterial infections where a clindamycin antibiotic may sometimes be considered.

Pregnancy and breastfeeding require special consideration. Clindamycin crosses the placenta and is excreted in breast milk, so always inform your prescriber if you are pregnant, planning a pregnancy, or breastfeeding before starting treatment.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

What Is Dalacin and What Is It Used For?

Dalacin contains clindamycin, a lincosamide antibiotic prescribed to treat infections caused by susceptible bacteria. Depending on the formulation, it is used to treat skin and soft tissue infections, bone and joint infections, gynaecological infections such as bacterial vaginosis, and dental infections in patients who cannot take penicillin-based antibiotics. It is a prescription-only medicine in the UK and should only be used under medical supervision.

What Do You Need to Know Before Using Dalacin?

Before starting Dalacin, your prescriber needs a full picture of your health. There are important contraindications and warnings to be aware of:

• Do not use if you have a known allergy to clindamycin or lincomycin.
• Do not use if you have a history of antibiotic-associated colitis or Clostridioides difficile infection.
• Use with caution if you have inflammatory bowel disease (Crohn's disease or ulcerative colitis).
• Use with caution if you have significant liver or kidney impairment.
• Tell your prescriber if you are pregnant or breastfeeding — clindamycin passes into breast milk.
• Not recommended for use in neonates without specialist guidance.

Clindamycin can interact with other medicines. Known interactions include:

• Neuromuscular blocking agents — clindamycin may enhance their effect, increasing the risk of prolonged muscle paralysis.
• Erythromycin — these two antibiotics may antagonise each other and should not be used together.
• Ciclosporin and tacrolimus — potential for altered drug levels; monitor closely.
• Anticoagulants (e.g. warfarin) — clindamycin may affect anticoagulant activity; INR monitoring is advisable.

How Should You Use Dalacin?

Always follow your prescriber's instructions exactly. The steps below are general guidance only — your dose and duration will be tailored to your specific condition.

1. Read the patient information leaflet supplied with your medicine before starting treatment.
2. For oral capsules: swallow whole with a full glass of water. Do not lie down for at least 10 minutes after taking a capsule to reduce the risk of oesophageal irritation.
3. For topical cream: clean and dry the affected area, then apply a thin layer as directed. Wash hands before and after application.
4. For vaginal cream: use the applicator provided and follow the instructions in the leaflet carefully.
5. Complete the full course of treatment even if you feel better — stopping early can allow bacteria to regrow and contribute to antibiotic resistance.

If you're also managing a related condition such as a fungal skin infection alongside a bacterial one, our athletes foot and fungal infections collection may offer complementary support products.

What Are the Possible Side Effects of Dalacin?

Like all medicines, Dalacin can cause side effects, though not everyone experiences them. Knowing what to look out for helps you respond quickly if something doesn't feel right.

Common side effects:

• Diarrhoea
• Nausea and vomiting
• Abdominal discomfort or pain
• Skin irritation, dryness, or peeling at the application site (topical use)
• Oesophageal irritation (oral capsules — reduced by taking with water)

Less common side effects:

• Pseudomembranous colitis (severe diarrhoea — stop treatment and seek urgent medical advice)
• Jaundice or abnormal liver function tests
• Blood disorders including neutropenia and thrombocytopenia
• Allergic reactions including rash, urticaria, or in rare cases anaphylaxis
• Vaginal irritation or discharge (vaginal formulation)

Pseudomembranous colitis is a rare but serious complication. If you develop severe, persistent, or bloody diarrhoea during or after treatment, stop taking Dalacin and contact your GP or go to A&E immediately. For general digestive support during antibiotic treatment, you might find our diarrhoea collection helpful for managing mild antibiotic-related bowel changes.

How Should You Store Dalacin?

• Store below 25°C in a cool, dry place.
• Keep away from direct sunlight and heat sources.
• Keep out of the reach and sight of children.
• Do not use after the expiry date printed on the packaging.
• Do not store in the bathroom or near a sink — moisture can degrade the product.
• Do not dispose of medicines via wastewater or household waste — return unused medicine to your pharmacy for safe disposal.