Pharmacy knowledge base
Health guides & medicine information
Plain-English explainers from our pharmacy team — what the medicines do, how the strengths differ, and how to use them safely.
Showing 61–72 of 418 guides
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Zopiclone: uses, dosage, side effects and how to take it safely
Summary: zopiclone is a short-term sleeping tablet (a 'Z-drug') for insomnia — usual dose 7.5mg at bedtime, works in about an hour. It's for short courses only (7–14 days) because it can cause dependence. Here's how to use it, the side effects, and the safety rules.
How long does zopiclone take to work — and how long does it last?
Summary: zopiclone works in about an hour, so take it right before bed. Its effect lasts through the night, and its half-life (~5 hours, longer in older adults) is why some people feel groggy the next morning. Here's the full timing picture and how to avoid the hangover.
Pain-O-Soma (carisoprodol): uses, dosage and how the muscle relaxer works
Summary: Pain-O-Soma is a brand of carisoprodol, a muscle relaxant for short-term relief of acute muscle and skeletal pain. Usual dose 250–350mg three times daily and at bedtime, for 2–3 weeks only. Here's how it works, the dosage, side effects and safety rules.
Carisoprodol as a muscle relaxer: when it helps and when it doesn't
Summary: carisoprodol is a centrally-acting muscle relaxant best for short-term acute muscle pain — strains, spasms and injuries — alongside rest and physiotherapy. It's not for chronic pain or long-term use. Here's when it genuinely helps and the safer alternatives to consider.
Is modafinil legal in the UK? The honest answer for buyers
Summary: modafinil is a prescription-only medicine (POM) in the UK — not a controlled/banned drug. It's legal to possess and to import for personal use, but selling or supplying it without authorisation isn't. Here's the honest legal picture and how people obtain it.
Modafinil dosage and uses: how much to take and when
Summary: the standard modafinil dose is 200mg once in the morning; 100mg suits sensitive users, and the max is 400mg. It works in about an hour and lasts most of the day. Here's how to dose it for wakefulness, how it compares to armodafinil, and the safety rules.
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Pregabalin for nerve pain: how it works, dosage and what to expect
Summary: pregabalin (Lyrica) treats nerve (neuropathic) pain by calming overactive nerve signals. It's started low and increased gradually, taken daily, and takes a week or two to build its full effect. Here's how it works, the dosage, side effects and safety rules.
Amoxicillin: uses, dosage and how to take this antibiotic correctly
Summary: amoxicillin is a common penicillin antibiotic for bacterial infections — chest, ear, throat, dental and urinary. Typical adult dose is 250–500mg three times a day; always finish the full course. Here's what it treats, how to take it, side effects and the crucial antibiotic-resistance rules.
Buying amoxicillin online: how it works and how to do it responsibly
Summary: amoxicillin is a prescription antibiotic, so buying it online means using a verifiable seller and using it responsibly — only for genuine bacterial infections, the right dose, the full course. Here's how online buying works, the genuine-product checks, and the stewardship rules.
Ivermectin: licensed uses, dosage and important safety facts
Summary: ivermectin is an antiparasitic medicine licensed to treat parasitic worm infections, scabies and some other parasites. Dosing is weight-based and usually a single or short course. Here's what it's genuinely licensed for, how it's dosed, and the safety facts.
Kamagra side effects: what's common, what's rare and what to watch for
Summary: Kamagra's side effects are sildenafil's — usually mild and dose-related: headache, flushing, a stuffy nose, indigestion. Serious effects are rare. Here's the full list, who's at higher risk, and the red flags that need urgent care.
Does Viagra make you last longer? What it does and doesn't do
Summary: Viagra (sildenafil) treats erections, not premature ejaculation — it doesn't directly delay climax. For lasting longer, the studied medicine is dapoxetine, plus behavioural techniques. Here's what actually helps, and how the two problems differ.