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 61–72 of 287 guides
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Cenforce 100 vs Cenforce 200: which strength should you choose?
Summary: Cenforce 100 contains 100mg of sildenafil and Cenforce 200 contains 200mg; the medicine is the same, only the dose differs. EMA product information sets 100mg as the maximum recommended dose, once a day, and reports that 200mg did not increase efficacy but raised side effects. 200mg is not a starting dose or a next step.
Vidalista (Tadalafil): The Strength Range Explained
Summary: Vidalista is generic tadalafil, the active ingredient in Cialis, made in several strengths. The EMA product information for Cialis gives 10mg as the usual on-demand dose and 20mg as the maximum, with lower doses for daily use. A higher number is not better; it mainly means more side effects. Choosing a strength is a medical decision.
Tadalafil vs Sildenafil: which lasts longer?
Summary: Tadalafil lasts far longer: the EMA product information for Cialis reports effects up to 36 hours after a dose. Sildenafil is taken about 1 hour before sex and works for a much shorter window. Food slows sildenafil more than tadalafil. Neither is stronger; they are different timing profiles, and both are dangerous with nitrates.
Carisoprodol (Pain O Soma): A Short-Term Use Guide
Summary: Carisoprodol (Pain O Soma) is a muscle relaxant for short courses of acute muscle pain, used alongside rest and physiotherapy. It acts on the nervous system, so it commonly causes drowsiness and dizziness: don't drive, and never mix it with alcohol. It can be habit-forming, so use it only for the short period your doctor advises.
Sildenafil dosage guide: 50mg, 100mg and 150mg explained
Summary: The EMA product information for Viagra gives 50mg as the usual dose of sildenafil and 100mg as the maximum. It is taken about 1 hour before sex and no more than once a day. Higher strengths such as 150mg exceed that maximum, and the strength is a doctor's decision. Never combine sildenafil with nitrates.
The Cenforce Range Explained: Understanding the Different Strengths
Summary: Cenforce is generic sildenafil sold in several strengths, including some above the EU maximum dose. The EMA product information for Viagra gives 50mg as the usual dose and 100mg as the maximum, so a higher number is not better: it mainly adds side effects. A doctor should choose the strength.
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Avanafil (Avana): How This PDE5 Inhibitor Works and When It Is Taken
Summary: Avanafil, sold as Avana, is a PDE5 inhibitor like sildenafil and tadalafil. The EMA product information for Spedra, the branded avanafil, advises taking it about 15 to 30 minutes before sexual activity, a shorter lead time than sildenafil's. Like all PDE5 inhibitors it needs arousal to work and must never be combined with nitrate medicines.
Kamagra vs Cenforce: what's the difference?
Summary: Kamagra and Cenforce both contain sildenafil, so they work identically; the differences are manufacturer, strengths and formats. Kamagra is made by Ajanta Pharma as tablets, oral jelly and other formats, while Cenforce is made by Centurion Laboratories as tablets in several strengths. The same rules apply to both: one dose a day, never with nitrates.
Lovegra and Female Sexual Dysfunction: A Factual Overview
Summary: Lovegra is a sildenafil product marketed to women, but evidence for sildenafil in female sexual dysfunction is limited and mixed. Female sexual dysfunction covers low desire, arousal difficulty, trouble reaching orgasm and pain during sex, and its causes are often hormonal, psychological or relationship-related. A doctor's assessment matters more than any product here.
Ivermectin: Its Established, Approved Uses Explained
Summary: Ivermectin is an antiparasitic medicine. Tablets are used for certain parasitic worm infections and for scabies, and sometimes for head lice when other treatments have failed; a cream form treats the bumps and spots of rosacea. The EMA advises against using it for COVID-19 outside clinical trials. A doctor decides the right form and dose.
Hydroxychloroquine (HCQS): Its Established Uses Explained
Summary: Hydroxychloroquine (HCQS) is used to prevent and treat malaria caused by sensitive parasites. It also manages rheumatoid arthritis and lupus, where it calms an overactive immune system. Long-term use can damage the retina, so regular eye checks are essential while you take it. It should only be used under medical supervision.
Kamagra Side Effects and Safety: What to Know
Summary: Kamagra (sildenafil) commonly causes headache, facial flushing, a blocked nose, indigestion, dizziness and temporary changes in colour vision. Never take it with nitrate medicines or poppers. Check with a doctor first if you have heart, liver or kidney problems. Get urgent help, calling 112 if needed, for chest pain or sudden loss of vision.