Pharmacy knowledge base
Health guides & medicine information
Plain-English explainers from our editorial team — what the medicines do, how the strengths differ, and how to use them safely.
Showing 97–108 of 287 guides
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Cenforce Professional: The Sublingual Sildenafil Option
Summary: Cenforce Professional is a sildenafil tablet that dissolves under the tongue instead of being swallowed with water. Only the way it is taken changes: the medicine still needs arousal, doesn't increase desire, and carries the same safety rules, including never combining it with nitrates. Don't rely on assumptions that it acts faster; follow the leaflet.
Cenforce vs Viagra: What Is the Real Difference?
Summary: Cenforce and Viagra contain the same active ingredient, sildenafil, so at the same strength they work the same way and share the same rules. Viagra is the original brand with EU authorisation; Cenforce is a lower-priced generic from Centurion Laboratories, sold in strengths that include doses above the 100mg EU maximum recommended dose.
How Long Does Cenforce Last? Understanding Duration and Timing
Summary: Cenforce (sildenafil) gives a window of a few hours in which an erection is easier to get and keep with arousal. It does not cause a continuous erection. The EMA product information for Viagra advises taking it about 1 hour before sex. Heavy meals, alcohol, age and metabolism change how long and how well it works.
Cenforce Side Effects and Safety: What You Need to Know
Summary: Cenforce (sildenafil) most often causes headache, flushing, a stuffy nose, indigestion, dizziness and temporary visual changes such as a blue tint. Never take it with nitrates or poppers. Seek urgent care, calling 112 if needed, for an erection lasting more than 4 hours, sudden loss of vision or hearing, or chest pain.
Vidalista 20 vs Vidalista 40: Understanding the Difference
Summary: Vidalista 40 contains 40mg of tadalafil, double the 20mg top on-demand dose in the EMA's product information; Vidalista 20 contains 20mg. EU guidance is 10mg usual and 20mg highest, once a day at most. Tadalafil already helps for up to 36 hours, so a higher strength is not a next step: speak to a doctor if 20mg isn't enough.
Sildamax 100: A Practical Guide to This Sildenafil Product
Summary: Sildamax is a generic form of sildenafil, the active ingredient in Viagra, used for erectile dysfunction. It increases blood flow to the penis only during sexual stimulation and is shorter-acting than tadalafil. A heavy meal or alcohol can delay or weaken it. Common side effects include headache and flushing, and it must never be combined with nitrates.
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Fildena Strengths Explained: Making Sense of the Options
Summary: Every Fildena product contains sildenafil; the strengths differ only in how much is in each tablet. A higher number doesn't mean a better experience, it mainly raises side effects. The EMA product information for Viagra gives 50mg as the usual dose and 100mg as the maximum, so let a doctor or pharmacist choose your strength.
Tadalafil and Blood Pressure: What You Need to Know
Summary: Tadalafil widens blood vessels, so it usually causes a small, harmless drop in blood pressure. The danger is combining it with other things that lower blood pressure: never take it with nitrate medicines such as GTN or with poppers, and get medical advice first if you take alpha-blockers or other blood-pressure medicines or have heart disease.
Erectile Dysfunction and Diabetes: Understanding the Link
Summary: Diabetes makes erectile dysfunction more common and often earlier, because high blood sugar damages blood vessels and nerves. Erections depend on both. Stress and some medicines can add to it. Good blood-sugar control, exercise and not smoking help, and ED medicines can work, but ED in diabetes is worth a doctor's assessment.
Pregabalin for Anxiety: How It Works and What to Consider
Summary: Pregabalin is authorised in the EU for generalised anxiety disorder, as well as nerve pain and epilepsy. That is according to the EMA product information for Lyrica. It calms overactive nerve signalling and is usually considered alongside or after talking therapies. It is a controlled medicine with a risk of dependence, and it must never be stopped suddenly.
Armodafinil: A Guide to This Wakefulness Medicine
Summary: Armodafinil is a wakefulness medicine closely related to modafinil, whose EU use is restricted to narcolepsy since the EMA's 2010 review. It manages sleepiness but does not treat the underlying cause, and it is not a study aid. It can make hormonal contraception less reliable and needs a doctor's supervision.
Ivermectin for Scabies: How This Treatment Works
Summary: Ivermectin tablets are an established treatment for scabies: they act on the mite's nervous system to clear the infestation. They are especially useful when creams are hard to apply, in widespread or crusted scabies, or in outbreaks. Close contacts usually need treating at the same time. Ivermectin has no proven role against COVID-19.