Cialis (tadalafil): What it does and how to use it safely

Cialis is a brand name for tadalafil, a drug used mainly to treat erectile dysfunction and sometimes symptoms of enlarged prostate (BPH). It relaxes muscles and widens blood vessels so blood flows more easily to the penis. Many men pick Cialis because one dose can help for up to 36 hours. That longer window makes timing less stressful than short‑acting pills.

How to take it

Most doctors start with 10 mg taken at least 30 minutes before sexual activity. Some men do better on 5 mg or 20 mg depending on effectiveness and side effects. There is also a low dose daily option, commonly 2.5 or 5 mg taken every day, for men who prefer not to plan around a pill. If you take the daily pill, don’t skip doses and take it about the same time each day.

Common side effects and when to get help

Headache, flushing, stuffy nose, and indigestion are the most common complaints. If you notice sudden vision loss, sudden hearing loss, severe chest pain, or an erection lasting more than four hours (priapism), seek emergency care right away. Avoid nitrates entirely while using tadalafil — the two together can cause a dangerous drop in blood pressure. Tell your prescriber if you take alpha blockers, blood pressure meds, or some antifungal and antibiotic drugs.

Men with heart disease should talk to their cardiologist before trying Cialis. If you have liver or kidney problems, dosing may need adjustment. Men with diabetes, high blood pressure, or after prostate surgery often still use tadalafil successfully, but they should check dosing and timing with a clinician. We have a specific guide on safe ED options for men with heart conditions that explains alternatives and step‑by‑step questions to ask your doctor.

Buy from licensed pharmacies and ask for generic tadalafil to save money. Compare prices, use valid coupons, and avoid any site that ships without a prescription. Keep medication in its original packaging, store it dry and at room temperature, and discard expired pills. If cost is an issue, ask your pharmacist about manufacturer savings programs or discount cards.

Try the lowest dose that works, avoid heavy drinking before taking a dose, and don’t take two doses in 24 hours. If one PDE5 inhibitor doesn’t work, another might — sildenafil (Viagra) and vardenafil (Levitra) are alternatives to discuss with your doctor. Read product information, tell your clinician about all medicines and supplements you take, and report side effects early.

Browse our Cialis‑tagged articles for deals, women’s sexual health options, and safe online pharmacy advice. Use our contact page if you have specific questions — we can point you to the right articles or resources.

Remember: starting a medication is a conversation — bring a list of current medicines, your health history, and clear goals so your provider can tailor the best plan today.