Treatments & medicines
Treatments, explained simply
What a treatment is for, how it generally works, and what to discuss with your GP or pharmacist — without the jargon.
- Aciclovir and antivirals
Aciclovir, valaciclovir and famciclovir — treating cold sores, genital herpes, and shingles on the NHS: doses, side effects, and when to start.
- Amlodipine
Amlodipine is a calcium channel blocker that relaxes blood vessels to treat high blood pressure and angina, sometimes causing ankle swelling.
- Amoxicillin
Amoxicillin is a penicillin antibiotic for bacterial chest, ear, sinus, dental and urine infections — how to take a full course and what side effects mean.
- Antacids and reflux medicines
Antacids ease heartburn by neutralising stomach acid, while other reflux medicines reduce acid production for longer-lasting, slower relief.
- Antibiotics
Antibiotics treat infections caused by bacteria, not viruses, so they will not help colds, flu, or most coughs and sore throats. Use only when needed.
- Antidepressants
Antidepressants are medicines that treat moderate to severe depression and some anxiety disorders by balancing brain chemicals over several weeks.
- Antifungal medicines
Antifungal medicines treat fungal infections like athlete's foot, ringworm and thrush, available as creams, sprays, tablets and pessaries from pharmacies.
- Antihistamines
Antihistamines are medicines that relieve allergy symptoms such as sneezing and itching by blocking histamine, with drowsy and non-drowsy types available.
- Aspirin
Aspirin is a medicine that relieves pain and fever at standard doses, and at low daily doses helps prevent heart attacks and strokes in people at risk.
- Atorvastatin
Atorvastatin is a statin medicine that lowers LDL cholesterol and reduces the risk of heart attack and stroke when taken daily exactly as prescribed.
- Blood pressure medicines
Blood pressure medicines lower the force of blood against artery walls, reducing the risk of heart attack and stroke, and are usually taken long-term.
- Cataract surgery
What cataract surgery involves, what to expect on the day, recovery and the risks — explained in plain English and reviewed by a consultant eye surgeon.
- Choosing contraception
Compare contraception by effectiveness, hormones, periods, convenience and STI protection, with NHS options from pills to coils and implants.
- Citalopram
Citalopram is an SSRI antidepressant for depression and anxiety disorders, with a lower maximum dose in older adults due to a heart rhythm risk.
- Co-codamol
Co-codamol combines paracetamol and codeine for short-term moderate pain — strengths, 4g paracetamol limit, constipation risk, and when to see a GP.
- Codeine
Codeine is a short-term opioid for moderate pain — how it works, constipation and dependence risks, and why it is restricted in children and breastfeeding.
- Contraceptive coil (IUD and IUS)
Copper and hormonal coils compared, effectiveness, fitting, bleeding changes, pain relief and warning signs after insertion.
- Contraceptive implant and injection
Compare the implant and injection for effectiveness, bleeding, side effects, duration and return to fertility.
- Contraceptive pill
The contraceptive pill prevents pregnancy using hormones. Combined and progestogen-only types differ in how they work, plus their benefits and risks.
- COVID-19 vaccine
The COVID-19 vaccine reduces the risk of serious illness from coronavirus; NHS eligibility, booster timing and common side effects explained.
- Decongestants
Decongestants relieve a blocked nose by shrinking swollen nasal blood vessels; sprays should only be used short-term to avoid rebound congestion.
- Diazepam
Diazepam is a benzodiazepine used short-term for severe anxiety, muscle spasm and seizures, with dependence risk if used beyond a few weeks.
- Emergency contraception
Emergency contraception prevents pregnancy after unprotected sex using the morning after pill (up to 120 hours) or the more effective copper IUD (up to 5 days).
- Fexofenadine
Fexofenadine is a non-drowsy antihistamine for hay fever and hives — dosing tips, why fruit juice reduces absorption, and when to see a GP.
- Flu vaccine
The flu vaccine is an annual jab that reduces your risk of flu and its complications, offered free on the NHS each autumn to people at higher risk.
- Fluoxetine
Fluoxetine (Prozac) is a long-acting SSRI antidepressant used for depression, bulimia and some anxiety disorders, with a slower withdrawal profile.
- Gabapentin
Gabapentin is a medicine for neuropathic pain and epilepsy that requires slow dose titration and careful use as a controlled drug in the UK.
- Hair loss treatments
Minoxidil and finasteride are the main hair loss treatments, slowing pattern baldness and prompting regrowth, though benefits reverse if you stop.
- Hormone replacement therapy (HRT)
How menopause HRT works, types including oestrogen-only and combined, benefits, risks, and what to expect when starting on the NHS.
- Ibuprofen and anti-inflammatory painkillers
Ibuprofen is an anti-inflammatory painkiller (NSAID) used for pain, swelling and fever, best taken with food at the lowest effective dose for you.
- Inhalers
Inhalers deliver asthma and COPD medicine straight to the lungs — reliever inhalers act fast, preventer inhalers are taken daily, and technique matters.
- Insulin
Insulin is a hormone medicine that lowers blood glucose, essential in type 1 diabetes and sometimes needed in type 2 diabetes when tablets are not enough.
- Laxatives
Laxatives treat constipation by softening, bulking or stimulating the bowel, usually working within 1 to 3 days, alongside fluids, fibre and exercise.
- Loratadine
Loratadine is a once-daily non-drowsy antihistamine used for hay fever, pet allergies and hives, available over the counter or on prescription.
- Medicines in pregnancy and breastfeeding
How to check prescription, pharmacy, herbal and over-the-counter medicines during pregnancy or breastfeeding without stopping essential treatment abruptly.
- Metformin
Metformin lowers blood sugar in type 2 diabetes and helps with PCOS; how to take it safely, common side effects, and when to see a GP about them.
- Missed contraceptive pill
What to do after a missed combined or progestogen-only pill, when emergency contraception may be needed, and where to check exact instructions.
- Mounjaro (tirzepatide)
Mounjaro (tirzepatide) is a once-weekly weight-loss injection now prescribed by GPs in England. Who qualifies on the NHS, side effects, and how to get it safely.
- Naproxen
Naproxen is an NSAID painkiller that reduces pain and inflammation; how to take it safely, side effects, and heart, kidney and stomach cautions.
- Oculoplastic and orbital surgery
What oculoplastic and orbital surgery covers — the eyelids, tear ducts and eye socket — and what to expect, reviewed by a consultant eye surgeon.
- Omeprazole and PPIs
Omeprazole is a proton pump inhibitor (PPI) that reduces stomach acid for heartburn, reflux and ulcers; how to take it safely and when to see a GP.
- Oral rehydration salts
Oral rehydration salts are pharmacy sachets that replace fluids and salts lost to diarrhoea and vomiting; how they work, dosing, and dehydration warning signs.
- Paracetamol
Paracetamol is a painkiller that eases mild to moderate pain and fever; how to take it safely, and why never exceeding the recommended dose matters.
- Prednisolone
Prednisolone is an oral steroid that suppresses inflammation in asthma, arthritis and autoimmune conditions; long courses need tapering and monitoring.
- Pregabalin
Pregabalin is a medicine used to treat nerve pain, epilepsy and generalised anxiety disorder, and it must be tapered slowly when stopped, not stopped abruptly.
- Propranolol
Propranolol is a beta-blocker that eases anxiety symptoms, prevents migraines, and treats heart conditions such as high blood pressure and angina.
- Ramipril
Ramipril is an ACE inhibitor used for high blood pressure, heart failure and kidney protection — how it works, the dry cough side effect, and monitoring.
- Sertraline
Sertraline is an SSRI antidepressant used for depression, anxiety, OCD and PTSD — how long it takes to work, side effects, and how to stop safely.
- Shingles vaccine
Who should have the shingles vaccine in the UK, how it prevents shingles, and what to expect after vaccination.
- Sildenafil and tadalafil
PDE5 inhibitors for erectile dysfunction — Viagra (sildenafil) and Cialis (tadalafil): how they work, dosing, NHS access, side effects, and safety with heart medicines.
- Squint (strabismus) surgery
How squint surgery straightens the eyes in children and adults, what to expect, recovery and risks — reviewed by a consultant eye surgeon.
- Statins
What statins are, why they are prescribed, their benefits and side effects, and how they are used.
- Steroid creams (topical corticosteroids)
What steroid creams are, what they treat, and how to use them safely on the skin.
- Steroid nasal sprays
What steroid nasal sprays treat, how to use them properly, and why technique and patience matter.
- Talking therapies and how to find a therapist
NHS talking therapies explained — CBT, counselling and EMDR, how to self-refer for free, and how to find a registered therapist near you in the UK.
- Testosterone replacement therapy
NHS testosterone replacement therapy (TRT) — gels, patches, and injections for hypogonadism: who qualifies, monitoring, side effects, and fertility warnings.
- Wegovy (semaglutide)
Wegovy (semaglutide) is a weekly weight-loss injection available through NHS specialist services. Who qualifies, how it differs from Ozempic, and what to expect.
- Weight loss medicines
NHS-prescribed weight loss medicines explained — orlistat, semaglutide (Wegovy) and tirzepatide (Mounjaro): who qualifies, how they work, and side effects.
- Weight-loss injections
Mounjaro, Wegovy and Saxenda compared — NHS eligibility criteria, average weight loss, GP versus specialist routes, and availability in each UK nation.