There’s no need to wait several days for the medication to reach a steady state in your body. Thanks to the higher dose, as-needed Cialis starts working quickly and typically reaches its peak concentration within two hours. If you have sex infrequently, only taking Cialis when it’s needed could reduce the total amount you spend on ED treatments (and potentially increase the amount you spend on lube and sex toys). The main disadvantage of taking Cialis on demand is that you’ll need to plan ahead when you want to have sex.

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Using Cialis on an as-needed basis offers several advantages. The first is that you gain more autonomy when it comes to treating ED. You don’t have to worry about missing a dose. Tailoring your usage based on when you plan to have sex can be helpful if you only see your partner a few days a week and don’t need your medication every day. You don’t have to acclimate to the medication. This can be tricky for men who, for instance, aren’t great at reading signals. Since Cialis usually takes 30 to 60 minutes to start working, you’ll need to time your medication to make sure it’s active when you need it. But you don’t have to be that specific with the timing. Since Cialis has a long half-life, it’s okay to take it several hours before you have sex.

Product Dosage Quantity + Bonus Price
Cialis Generic40mg60 + 6 Pills130.98€ 124.74€
Cialis Black80mg360 + 20 Pills639.78€ 609.31€
Cialis Generic10mg20 Pills48.23€ 45.93€
Cialis Generic2.5mg270 + 10 Pills199.64€ 190.13€
Cialis Super Active20mg60 + 8 Pills230.32€ 219.35€
Cialis Generic10mg120 + 6 Pills178.49€ 169.99€
Cialis Generic2.5mg120 + 6 Pills128.93€ 122.79€
Cialis Generic5mg90 + 6 Pills115.91€ 110.39€
Cialis Professional40mg60 + 2 Pills262.32€ 249.83€
Cialis Generic20mg270 + 10 Pills335.21€ 319.25€
Cialis Soft Tabs20mg120 + 6 Pills248.64€ 236.80€
Cialis Generic60mg60 + 4 Pills145.06€ 138.15€
Cialis Professional20mg270 + 6 Pills623.07€ 593.40€
Cialis Professional40mg120 + 4 Pills436.68€ 415.89€

This makes timing as-needed Cialis much easier than shorter-acting ED medications, like sildenafil, vardenafil, and Stendra. A bigger disadvantage of as-needed Cialis is the higher dosage. This isn’t an issue for everyone, but if you’re prone to side effects, it might make certain side effects of Cialis more intense. Both forms of Cialis are well tolerated and effective at treating ED. Ultimately, the best option depends on your needs, lifestyle, and preferences. Our guide to daily-use Cialis explains in greater detail how to choose between a daily or as-needed dose to treat ED. If you’re prescribed Cialis for daily use, it’s common to sometimes forget to use your medication. What to do when you forget to take Cialis depends on the time of day you actually remember.

What Are the Possible Side Effects of Cialis?

Taking a daily dose of Cialis means you’ll be able to enjoy spontaneous sex without having to worry about carrying the medication with you or waiting 30 to 60 minutes after taking your medication because it’ll be in your system at all times. It’s a set-it-and-forget-it strategy. You can take it at the same time every day without thinking about other factors. So if you’re on vacation or just suddenly feel in the mood, the “always on” effects of daily Cialis can be a major upside. Since daily-use Cialis is typically taken at a 2.5mg or 5mg dosage, it may also be less likely to cause side effects than a higher dose.

Discover more about Cialis

Despite its advantages, taking a daily dose of this ED medication also has a few minor downsides. The first is that, because of the lower dosage, it often takes several days to become fully effective. It can take about five days for the active ingredient tadalafil to reach a steady state in your system. That’s a small problem if you’ve already been waiting for some time. Another potential disadvantage of daily-use Cialis is that the medication is always working — and this can increase the risk of side effects or allergic reaction. If you forget to take Cialis, take the missed dose as soon as you remember. If it’s close to your next dose, skip the missed dose and continue using the medication as usual. But generally speaking, don’t use this medication more than once per day.

Parameter Description Value
Absorption Time Time to reach peak plasma levels 2 hours
Half-life Duration of drug activity 17.5 hours
Bioavailability Percentage absorbed into bloodstream Approximately 40%
Metabolism Liver processing Mainly via CYP3A4 enzyme
Excretion How eliminated from body Mainly feces, some urine

Erectile function isn’t about loading up with a massive dose to get the full effects. You should never exceed the maximum dose of Cialis in 24 hours. Cialis dosage 20mg is the Cialis max dose for erectile dysfunction when taken as needed or 5mg when taken on a daily basis — but a healthcare professional will almost certainly start you on a lower dose.

Medication Type Interaction Effect Risk Level
Nitrates Severe hypotension, dangerous lowering High
Alpha-blockers May cause blood pressure drop Moderate to high
CYP3A4 inhibitors Increased tadalafil levels Moderate
Other ED medications Increased side effects or toxicity High

If you’re starting Cialis and don’t notice any improvements at the dose you’re prescribed, consult your healthcare provider before making any changes to your dosage or use of this medication. The 5mg dose of Cialis generally starts working quickly, sometimes within a half-hour of taking the pill. It could take up to six hours, though. And with the daily version, it might take several days for this ED medication to reach maximum effectiveness. No, you shouldn’t take 80mg of Cialis. This is four times the maximum Cialis dosage of 20mg and isn’t safe. And if you’re cialis tabs 20mg on daily Cialis, the max is 5mg a day. Never take more than what’s prescribed — of Cialis, tadalafil, or any medication. No, 40mg of Cialis isn’t safe to take and could lead to more or worsened side effects. This is twice the maximum as-needed 20mg dose. If Cialis isn’t working for you, ask your healthcare provider about trying a different ED medication. Once-daily Cialis is usually dosed at 2.5 to 5mg. The as-needed version ranges from 10 to 20mg. The typical dosage for as-needed Viagra is 50mg, but it can range as well. Learn about generic tadalafil dosage in our guide. When taking Cialis, you should know certain prescription drugs and other substances can affect your dosage. Cialis (and other medications used to treat erectile dysfunction) may interact with other medications. The list of contraindicated meds includes nitrates, alpha-blockers, and other meds used to treat hypertension (high blood pressure).

  • Cialis 2.5 mg is used to treat erectile dysfunction.
  • It is usually taken once daily for ongoing needs.
  • Consult a doctor before starting this low dose.

It also includes medications that can increase the concentration of the active ingredient in your blood by affecting the CYP3A4 enzyme, like doxazosin and ketoconazole.

Directions for Using Cialis

The active ingredient in Cialis, tadalafil, is also used to treat pulmonary arterial hypertension. By dilating the arteries inside the lungs, the medication reduces blood pressure and improves blood flow. Tadalafil is usually sold under the brand name Adcirca® when used to treat PAH. Brand-name Cialis isn’t prescribed for this use. According to the FDA, Adcirca is typically prescribed in doses of 40mg for the treatment of PAH.

Overdose symptoms

The most appropriate Cialis dose for you will depend on your needs, your healthcare provider’s assessment, and how well you respond to the medication. For ED, Cialis is available in two forms: daily or as needed. Cialis daily dosage: 2.5mg and 5mg Cialis daily dosage: 2.5mg and 5mg Cialis as-needed dosage: 5mg, 10mg, and 20mg Cialis as-needed cialis 10mg pills dosage: 5mg, 10mg, and 20mg If you’re prescribed this medication for daily use, it’s important to take it at roughly the same time every day. In other words, don’t take it based on your lovemaking time block on iCal. Daily Cialis is a good option if you’ve already responded well to PDE5 inhibitors or if you have sex more than two times a week. FYI, grapefruit juice also has this effect, so watch your breakfast beverage intake if you’re a morning sex guy. Some recreational drugs, such as “poppers,” that contain amyl nitrate or butyl nitrate can also interact with Cialis and cause a sudden decrease in blood pressure. And low blood pressure could lead to more serious side effects like heart failure. Before taking Cialis, let your healthcare provider know about all medications you currently use or have recently used. Additionally, give them a heads up about any liver problems or renal issues (like kidney disease) or if you suffer from Peyronie’s disease.

Patient Group Dosage Instructions Frequency
Adult Men with ED 2.5 mg once daily One tablet per day
Patients with Liver Issues Consult doctor before use Usually starting with 2.5 mg
Elderly Men Start with 2.5 mg, adjust as needed As per doctor's advice
Concomitant Medications Check for drug interactions Especially nitrates

Cialis is one of the most popular medications used in the treatment of erectile dysfunction — and for good reason. Not only is it effective at treating ED, but its long duration of action means it only needs to be taken once a day to provide lasting effects.

  • Cialis 2.5 mg can be used daily for convenience.
  • It has a longer duration of action, up to 36 hours.
  • Store the medication in a cool, dry place.

But don’t take the medication’s convenience and safety track record as excuses to mess around. Still asking yourself, How much Cialis should I take? Here are the key takeaways from our Cialis dosage guide: Only take Cialis when it’s prescribed by a healthcare professional. Unlike supplements, FDA-regulated Cialis must be prescribed by a licensed medical professional. Only take Cialis when it’s prescribed by a healthcare professional. There are two options for using this medication.

Is Cialis Effective in Preventing Sexually Transmitted Diseases or Pregnancy?

Your healthcare provider may prescribe Cialis for daily use at a dosage of 2.5mg. If you don’t respond to the lower dosage or need a more significant effect from the medication, it might be increased to 5mg. For those who like to follow their hearts, Cialis is also available to take as needed. This means you can take it just before you plan to have sex. Like other medications for ED, Cialis starts working quickly.

When to take

In most cases, you’ll start to notice its effects in 30 to 60 minutes. The medication reaches its maximum concentration in the body 30 minutes to six hours after swallowing the pill. When prescribed for as-needed use, Cialis is available in 5mg, 10mg, and 20mg doses. The typically recommended starting dose is 10mg. If you still find it difficult to get or maintain an erection at a 10mg dose, your provider might bump it up to 20 mg, or you may reduce it to 5mg if you experience side effects. Take a low dose on a daily basis or take a slightly higher dose as needed.

Brand Name

Some words of caution about taking as-needed Cialis: Cialis is designed for use one time per day. You shouldn’t take it (or any other ED medication) more than once per day — even the as-needed version. Cialis is designed for use one time per day. You can take Cialis on its own or with a meal. This shouldn’t affect how long it takes for the medication to start working.

Will I need to take this drug long term?

However, fatty foods can sometimes reduce its effect, so go with the filet instead of the bone-in ribeye if you’re planning on having sex later. Daily-use and on-demand Cialis each have advantages and disadvantages, so there’s no “best” option for everyone. Like the other details of your sex life, what works for you will be unique to your needs. That said, those needs will dictate the best way to take it, so we’ll go over the major benefits and drawbacks of each dosing option below. Taking Cialis daily offers the convenience of a predictable routine and the ability to have sex whenever you want — without having to worry about taking medication right before. Take Cialis as needed if you don’t have sex often.