The Ultimate Guide to Understanding the Side Effects of Cialis
Erectile Dysfunction
May 3, 2024
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The Ultimate Guide to Understanding the Side Effects of Cialis

Cialis, or Tadalafil, is a widely used prescription medication for treating erectile dysfunction (ED) and symptoms of benign prostatic hyperplasia (BPH). While it is effective in improving sexual function, it's essential for users to be aware of its potential side effects.

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Recap: what is Cialis?

Cialis is a phosphodiesterase type 5 (PDE5) inhibitor, a class of medication that includes several drugs used to treat ED and, in some cases, BPH. 

Other ED medications require planning and timing your pill intake close to sexual activity. Cialis on the other hand, offers a longer duration of action, allowing for greater spontaneity when the mood strikes. 

Common Side Effects of Cialis

Cialis may cause a range of side effects, from mild to severe and short-term to long-term. These can vary depending on the dosage and other factors such as individual response. 

Short-term Side Effects

  • Headaches (most common side effect)
  • Muscle Aches within the first 12-24 hours of use)
  • Nasal Congestion 
  • Flushing
  • Indigestion

Side Effects by Dosage

Cialis 2.5 mg and 5 mg (Daily Use):

These lower doses of Cialis, meant for daily intake, tend to be easier on your body. Due to its lower dose, the likelihood and intensity of side effects are generally lower. 

It's a more consistent, gradual approach, aiming to minimise discomfort while managing ED effectively.

Cialis 10 mg and 20 mg (Taken As Needed):

With these higher doses, taken only when needed, there's a greater chance of experiencing side effects, and they may feel stronger. 

This is because the body is dealing with a larger amount of the medication at once, which can sometimes result in a more pronounced reaction. It's a trade-off for more immediate or potent assistance with ED.

Specific Side Effects and Concerns

Blood Pressure Variations 

Cialis causes blood pressure to decrease by relaxing the muscles in the walls of blood vessels, allowing them to widen and increase blood flow. This dilation of blood vessels leads to a reduction in overall blood pressure.

Heart-Related Side Effects

Taking Cialis can pose extra risks for people who already have heart problems. Since the medication lowers blood pressure by opening up blood vessels, it can add stress to the heart, especially if the heart is already weak or damaged. 

This means for someone with heart conditions, like heart disease or a history of heart attacks, using Cialis could potentially lead to serious complications, 

Liver and Kidney Effects

Cialis has the potential to impact how your liver and kidneys work, especially for those who already have issues with these organs. It could worsen existing problems or affect how other medications are processed in your body.

Muscle Aches and Leg Pain 

After taking Cialis, it's not unusual to feel muscle pain or discomfort in your legs, particularly if you've been more active. These aches are more about your body responding to the increased blood flow than anything else.

Other Effects

As mentioned earlier, headaches and dizziness are among the more common side effects of Cialis, which can make it tough to focus on daily tasks or just enjoy your day. These effects are usually your body's initial reaction to the medication.

Side Effects in Special Conditions

Mixing with Alcohol

Mixing Cialis with alcohol could increase your likelihood of experiencing side effects, particularly those related to your blood pressure. 

Alcohol on its own can lower your blood pressure, so when you add Cialis into the mix, the combined effect might drop it even more. This could lead to symptoms like dizziness, headaches, or even feeling faint, especially if you stand up quickly.

Mixing with Other Medications

You could use Cialis with other medications, but always check with your doctor to ensure it’s safe.. Here’s a rundown:

  1. Premature Edjaculation (PE) Medication (like Dapoxetine): It's usually okay to combine these with Cialis for PE issues, but only if your doctor gives the green light.
  2. Blood Pressure Medications: Some blood pressure medicines are fine to take with Cialis. Your doctor will watch your blood pressure closely to ensure it doesn’t drop too low. 
  3. Prostate Meds or Alpha-Blockers: These are often used for prostate problems or high blood pressure. Your doctor will need to adjust things to avoid low blood pressure.
  4. Antifungals, HIV Meds, and Some Antibiotics: With these, dosage adjustments are often needed, so talking to your doctor is key.

Meanwhile, mixing Cialis with other ED meds like Viagra is not a good idea. It can lead to serious health risks, like very low blood pressure. Stick to one ED medication at a time and follow your doctor's advice to stay safe.

Effects on Specific Groups

The Elderly

Older adults might feel the side effects of Cialis more strongly. As we age, our bodies process drugs differently, often more slowly, which means a medication like Cialis can stay in the system longer and potentially lead to increased side effects. 

These could include the more common ones like headaches and muscle aches but felt more intensely. 

Men with Pre-existing Conditions:

For those with certain health issues, Cialis could make things a bit more complicated. 

For example, issues like severe diabetes, high blood pressure, or certain genetic eye diseases might also make the side effects of Cialis more pronounced or risky.

Long-term Use

Using Cialis for a long time brings up a few things you and your doctor need to keep an eye on:

Chronic Use Concerns

If you're taking Cialis regularly over years, it's smart to check how it's affecting your heart and blood vessels since it affects your blood flow. You'll want to catch any signs early if it's starting to cause problems.

The same can be said for heart health. Since Cialis impacts how blood moves through your body, it's important to notice any changes in your heart or blood pressure that might need attention.

Potential for Dependence

Getting hooked on Cialis isn't really about your body needing it, but more about feeling like you can't perform sexually without it. 

It's more of a mental thing, where you might feel less confident without the pill. Talking this out with your doctor can help you find a good balance.

Changes in Efficacy

After using Cialis for a while, you might find it doesn't work as well as it used to. 

This could be because your body's getting used to it, or maybe other health issues are playing a role.

Managing and Mitigating Side Effects

Dealing with the side effects of Cialis doesn't have to be a big headache. Here's how you can keep things under control:

Strategies to Reduce Side Effects

Making some changes in your day-to-day life can really help cut down on side effects. 

This could mean eating differently, changing when you take your pill, or tweaking other parts of your lifestyle. Sometimes, small shifts can make a big difference in how you feel.

When Side Effects Go Away

If you're dealing with annoying but mild side effects, there's good news: they often get better on their own as your body gets used to the medication.

Give it some time, and you might find those bothersome issues start to fade.

Uncommon and Rare Side Effects

Liver Function

Your liver helps clean drugs out of your system, and since it processes Cialis, long-term use could make it work harder. 

Keeping an eye on these can help your doctor adjust your treatment if needed, ensuring your liver stays in good shape.

Vision and Hearing Anomalies

Although it's rare, people taking Cialis might suddenly have trouble seeing or hearing things clearly. 

This could mean everything looks blurry, colours seem strange, or you can't hear as well as you used to. 

If you notice anything like this, you should stop taking the pill and call your doctor right away to figure out what's going on and avoid any lasting problems.

Severe Allergic Reactions

Allergic reactions to Cialis are not common, but they can be serious. If you start getting hives, have trouble breathing, or notice swelling (like your face puffing up), you need to get medical help fast. These are signs your body is not okay with the medication.

Risks of Counterfeit Cialis

When it comes to Cialis, making sure you're getting the real deal is crucial. Here's a bit more on how to stay safe and why it matters:

Identifying Fake Cialis

Genuine Cialis has specific markings and comes in distinct packaging that you can learn to recognize. The pill itself should have a certain look, colour, and shape, and it usually comes with detailed packaging that includes safety information and the manufacturer's details. 

Always be wary of any place selling Cialis without needing a prescription, whether it's a physical store or an online site.

Risks and Side Effects of Counterfeit Products

The dangers of fake Cialis can't be overstated. Counterfeit pills might not contain the correct active ingredient, could have the wrong dosage, or might be laced with harmful substances. 

This not only means they might not work, but they could also cause unexpected or severe health problems. 

The best way to avoid these risks is to always buy Cialis from places you trust, like legitimate pharmacies and certified online retailers. 

This ensures you're getting a safe product that's been properly handled and contains exactly what it's supposed to.

Comparing with other ED meds

Cialis vs. Viagra

Effect Duration: Cialis has a notable advantage with its up to 36-hour window of effectiveness (depending on its dosage amount), offering more flexibility and spontaneity. Viagra, on the other hand, typically lasts for about 4 to 5 hours.

Side Effects: While both medications can cause similar side effects like headaches, flushing, and indigestion, the longer duration of Cialis might mean that any side effects you experience could last longer. 

However, some users prefer Cialis precisely because its effects are more spread out and can feel milder.

Time to Effect: Viagra might work slightly faster, often within 30 to 60 minutes, whereas Cialis can take up to 2 hours to reach its peak effectiveness.

Cialis vs. Levitra

Effect Duration: Like Viagra, Levitra’s effects last for about 4 to 5 hours, which is significantly shorter than the up to 36 hours offered by Cialis (depending on its dosage amount). This makes Cialis a go-to for those looking for more prolonged effectiveness.

Side Effects: Levitra and Cialis share common side effects like headaches, flushing, and nasal congestion. However, Levitra is sometimes reported to cause less visual disturbance than Viagra or Cialis. This might be a consideration for users who are sensitive to changes in their vision.

Ultimately, the choice between Cialis, Viagra, and Levitra will depend on individual preferences, health considerations, and how the body reacts to each medication. 

Consulting a doctor can help determine the most suitable option based on your health history and treatment goals, ensuring that you choose the ED medication that best meets your needs while minimising side effects.

If you're facing the challenges of erectile dysfunction, it's crucial to seek guidance from a medical professional

At noah, our team of doctors is highly skilled and experienced in identifying the underlying causes of ED. They will provide you with expert advice on the most suitable treatment options tailored to your needs. 

Additionally, if necessary, they can prescribe the appropriate medication to assist you on your journey towards overcoming ED.

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Written by our Editorial Team
Last updated
August 16, 2023
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