{"id":4621,"date":"2026-07-31T07:16:44","date_gmt":"2026-07-31T07:16:44","guid":{"rendered":"https:\/\/peptoscience.com\/?post_type=product&#038;p=4621"},"modified":"2026-07-31T07:16:47","modified_gmt":"2026-07-31T07:16:47","slug":"levitra-20mg","status":"publish","type":"product","link":"https:\/\/peptoscience.com\/it\/product\/levitra-20mg\/","title":{"rendered":"Levitra 20mg"},"content":{"rendered":"<h1><a href=\"http:\/\/google.com\">Levitra<\/a> 20mg<\/h1>\n<div class=\"relative mx-auto max-w-2xl px-0 md:px-4 w-full md:m-auto md:w-[90%]\">\n<div class=\"group relative flex items-start md:-ml-12 chat-message\" data-message-id=\"0XQ4U8X\">\n<div class=\"ml-4 flex-1 space-y-2 overflow-hidden px-1\">\n<div class=\"relative\">\n<div class=\"transition-all duration-300 ease-in-out\">\n<div>\n<div>\n<div class=\"prose break-words dark:prose-invert prose-p:leading-relaxed prose-pre:p-0 fix-max-with-100 prose-p:!mt-0\">\n<p class=\"mb-2 last:mb-0\"><a href=\"https:\/\/trusthillpharmacy.de\/\">Levitra<\/a> 20mg is a prescription medication containing <strong>vardenafil hydrochloride<\/strong>, a phosphodiesterase type 5 (PDE5) inhibitor used primarily to treat\u00a0<strong>erectile dysfunction (ED)<\/strong>\u00a0in adult men. The 20mg dose is the maximum recommended strength per tablet. It&#8217;s not for women, children, or recreational use.<\/p>\n<h4>How It Works<\/h4>\n<ul>\n<li>Vardenafil increases blood flow to the penis by relaxing smooth muscles and dilating blood vessels during sexual stimulation.<\/li>\n<li>It does\u00a0<strong>not<\/strong>\u00a0cause an erection without arousal and\u00a0<strong>does not<\/strong>\u00a0protect against STDs or increase fertility.<\/li>\n<li>Effects typically start in\u00a0<strong>25-60 minutes<\/strong>, peak at 30-120 minutes, and last\u00a0<strong>4-5 hours<\/strong>\u00a0(up to 8 in some cases).<\/li>\n<\/ul>\n<p class=\"mb-2 last:mb-0\"><strong>Evidence<\/strong>: Clinical trials (e.g., FDA approval data from 2003 and studies in\u00a0<em>The Journal of Sexual Medicine<\/em>) show 20mg vardenafil improves erections in 65-80% of men with ED, outperforming placebo (30-40%). It&#8217;s effective even after food\/alcohol (unlike some PDE5 inhibitors).<\/p>\n<h4>Dosage Guidelines<\/h4>\n<\/div>\n<div class=\"overflow-x-auto my-4\">\n<table class=\"markdown-table\">\n<thead>\n<tr>\n<th>Dose<\/th>\n<th>When to Take<\/th>\n<th>Frequency<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>20mg<\/td>\n<td>1 tablet ~1 hour before sex (can be 30min-2hrs prior)<\/td>\n<td>Max\u00a0<strong>once daily<\/strong>; no more than 1 dose\/24hrs<\/td>\n<\/tr>\n<tr>\n<td>Starting\/Adjust<\/td>\n<td>Often begin at 10mg; adjust based on efficacy\/tolerance<\/td>\n<td>Swallow whole with\/without water<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div class=\"prose break-words dark:prose-invert prose-p:leading-relaxed prose-pre:p-0 fix-max-with-100 prose-p:!mt-0\">\n<ul>\n<li><strong>Do not exceed 20mg\/day<\/strong>. Lower to 5-10mg if you have liver\/kidney issues, are over 65, or take certain meds.<\/li>\n<\/ul>\n<h4>Common Side Effects (Affecting 1-10% of users)<\/h4>\n<\/div>\n<div class=\"overflow-x-auto my-4\">\n<table class=\"markdown-table\">\n<thead>\n<tr>\n<th>Mild (usually resolve)<\/th>\n<th>Serious (seek immediate help)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Headache (15%)&lt;br&gt;Flushing (10%)&lt;br&gt;Nasal congestion (9%)&lt;br&gt;Back pain\/dizziness (3-5%)&lt;br&gt;Indigestion<\/td>\n<td>Priapism (erection &gt;4hrs: emergency!)&lt;br&gt;Sudden vision\/hearing loss&lt;br&gt;Chest pain\/heart attack symptoms&lt;br&gt;Allergic reaction (rash\/swelling)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div class=\"prose break-words dark:prose-invert prose-p:leading-relaxed prose-pre:p-0 fix-max-with-100 prose-p:!mt-0\">\n<p class=\"mb-2 last:mb-0\"><strong>Evidence<\/strong>: From Bayer\/GSK post-marketing data and meta-analyses (<em>European Urology<\/em>, 2018) showing low discontinuation rates (&lt;2%) due to sides.<\/p>\n<h4>Key Warnings &amp; Contraindications<\/h4>\n<ul>\n<li><strong>Never take with<\/strong>\u00a0nitrates (e.g., nitroglycerin for chest pain) \u2192 life-threatening blood pressure drop.<\/li>\n<li>Avoid if you have severe heart\/liver\/kidney disease, recent stroke\/heart attack, low BP, or eye conditions like retinitis pigmentosa.<\/li>\n<li><strong>Drug interactions<\/strong>: Alpha-blockers, antifungals (ketoconazole), HIV protease inhibitors, erythromycin \u2192 dose adjustment needed.<\/li>\n<li><strong>Alcohol<\/strong>: Limit to 3 drinks; excess increases dizziness\/fainting risk.<\/li>\n<li><strong>Not for<\/strong>: Pulmonary hypertension (use specific formulations) or female use.<\/li>\n<\/ul>\n<p class=\"mb-2 last:mb-0\"><strong>Evidence<\/strong>: FDA black box warning on nitrates; confirmed in trials where combo caused 50mmHg BP drops.<\/p>\n<h4>Availability &amp; Cost<\/h4>\n<ul>\n<li><strong>Prescription only<\/strong>\u00a0(Schedule not controlled in most countries).<\/li>\n<li>Generic vardenafil available since 2018, cheaper than brand (~20+).<\/li>\n<li>Buy from licensed pharmacies; avoid unverified online sources (risk of fakes per FDA alerts).<\/li>\n<\/ul>\n<p class=\"mb-2 last:mb-0\"><strong>Consult a doctor<\/strong>\u00a0before use\u2014especially with health conditions or meds. This is general info, not personalized advice. For full details, see official sources like\u00a0<a>FDA Label<\/a>\u00a0or\u00a0<a>EMA Summary<\/a>. If experiencing ED, underlying causes (e.g., diabetes, stress) should be addressed.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"flex items-center justify-end gap-1 transition-opacity duration-100 opacity-0 group-hover:opacity-100 group-focus-within:opacity-100 md:absolute md:-right-10 md:-top-2\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"relative mx-auto max-w-2xl px-4 w-full md:m-auto md:w-[90%]\">\n<div class=\"group relative mb-4 flex items-start md:-ml-12\">\n<div class=\"sm:ml-4 flex-1 space-y-2 overflow-hidden pr-1\">\n<div class=\"flex w-full items-center justify-between\">\n<div class=\"flex items-center space-x-1\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Levitra 20mg Levitra 20mg is a prescription medication containing vardenafil hydrochloride, a phosphodiesterase type 5 (PDE5) inhibitor used primarily to treat\u00a0erectile dysfunction (ED)\u00a0in adult men&#8230;.<\/p>","protected":false},"featured_media":4642,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"etheme_brands":[],"product_brand":[],"product_cat":[15],"product_tag":[143],"class_list":["post-4621","product","type-product","status-publish","has-post-thumbnail","product_cat-uncategorized","product_tag-levitra-20mg","first","instock","shipping-taxable","purchasable","product-type-variable"],"_links":{"self":[{"href":"https:\/\/peptoscience.com\/it\/wp-json\/wp\/v2\/product\/4621","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/peptoscience.com\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/peptoscience.com\/it\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/peptoscience.com\/it\/wp-json\/wp\/v2\/comments?post=4621"}],"version-history":[{"count":1,"href":"https:\/\/peptoscience.com\/it\/wp-json\/wp\/v2\/product\/4621\/revisions"}],"predecessor-version":[{"id":4643,"href":"https:\/\/peptoscience.com\/it\/wp-json\/wp\/v2\/product\/4621\/revisions\/4643"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/peptoscience.com\/it\/wp-json\/wp\/v2\/media\/4642"}],"wp:attachment":[{"href":"https:\/\/peptoscience.com\/it\/wp-json\/wp\/v2\/media?parent=4621"}],"wp:term":[{"taxonomy":"brand","embeddable":true,"href":"https:\/\/peptoscience.com\/it\/wp-json\/wp\/v2\/etheme_brands?post=4621"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/peptoscience.com\/it\/wp-json\/wp\/v2\/product_brand?post=4621"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/peptoscience.com\/it\/wp-json\/wp\/v2\/product_cat?post=4621"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/peptoscience.com\/it\/wp-json\/wp\/v2\/product_tag?post=4621"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}