Cialis Together Side Effects: Complete Safety Guide
When Do Side Effects Start? How Long Do They Last? Timeline, Contraindications & Food Interactions
Key Takeaways: Cialis Together Side Effects
- Common side effects: Headache, flushing, indigestion, back pain, muscle aches – usually mild.
- Onset: Most side effects begin within 1–4 hours after taking the tablet.
- Duration: Typically last a few hours to a day; back pain may persist longer.
- Contraindications: Do not take with nitrates, poppers, or if you have severe heart/liver problems.
- Food interactions: Avoid grapefruit juice; limit alcohol.
- Emergency: Prolonged erection (>4h), vision loss, chest pain – seek immediate help.
Cialis Together (tadalafil 10mg) is generally well tolerated, but like all medicines it can cause side effects. This guide explains when they start, how long they last, and what to watch out for – based on the official patient information leaflet.
Important Medical Advice
If you experience an erection lasting more than 4 hours (priapism), sudden vision loss, or chest pain during sex, seek immediate medical help. Do not take Cialis Together with nitrates or poppers – this can cause a dangerous drop in blood pressure.
When Do Cialis Together Side Effects Start?
Cialis Together is absorbed quickly – peak blood levels occur around 2 hours after taking. Side effects usually appear within this absorption phase, often starting 30 minutes to 4 hours after you take the tablet. For example:
- Headache, flushing, indigestion: can start within 1–2 hours.
- Back pain or muscle aches: may begin a few hours later and can last longer.
- Dizziness or low blood pressure: might occur soon after taking, especially if combined with alcohol.
If you experience any side effects, they are likely to be most noticeable during the first 12 hours while the drug concentration is highest.
How Long Do Cialis Together Side Effects Last?
Because tadalafil has a long half‑life (17.5 hours), side effects can last correspondingly longer than with shorter‑acting ED drugs. However, most are temporary:
| Side effect | Typical duration |
|---|---|
| Headache, flushing, indigestion | A few hours to 24 hours |
| Back pain or muscle aches | May last 24–48 hours; sometimes longer |
| Nasal congestion, dizziness | Usually resolves within 12–24 hours |
| Vision disturbances (rare) | Temporary, fades as drug leaves system |
Once the drug is eliminated (about 3–4 days), side effects completely disappear. If any symptom persists beyond a few days, consult your doctor.
Cialis Together Side Effects Timeline
Based on the medicine’s pharmacokinetics, here’s a general timeline of when side effects may appear and fade:
- 0–4 hours (absorption phase): headache, flushing, indigestion, dizziness, low blood pressure possible.
- 4–12 hours (peak effect): back pain, muscle aches, nasal congestion, visual changes (rare).
- 12–36 hours (elimination phase): lingering back pain, mild headache – most other effects subside.
- After 36–72 hours: most side effects resolved; trace amounts remain.
Note that individual responses vary. If you have side effects that worry you, speak to a pharmacist or doctor.
Cialis Together Contraindications: Who Should NOT Take It
Do not use Cialis Together if any of the following apply (from the PIL):
- You take nitrates (e.g., GTN, isosorbide mononitrate) or nitric oxide donors (including recreational "poppers") – risk of severe blood pressure drop.
- You take riociguat or other guanylate cyclase stimulators (for lung hypertension).
- Your doctor has advised avoiding sexual activity due to heart problems (recent heart attack/stroke, unstable angina, severe heart failure).
- You have uncontrolled high or low blood pressure.
- You have ever had vision loss from NAION ("stroke of the eye").
- You have a deformed penis (Peyronie's disease, angulation).
- You have severe liver or kidney problems.
- You are under 18 or a woman (not indicated).
- You are allergic to tadalafil or any tablet ingredient.
Always have a medical check‑up before starting treatment to ensure Cialis Together is safe for you.
Cialis Together Food & Drug Interactions
Food and drink
- Grapefruit juice: Avoid. It can increase tadalafil levels and worsen side effects.
- Alcohol: Excessive alcohol can lower blood pressure, increase dizziness, and impair erection. Limit to 1–2 units.
- Food: No restrictions; can be taken with or without meals.
Drug interactions
- Nitrates/poppers: Absolute contraindication – risk of life‑threatening hypotension.
- Alpha‑blockers (e.g., tamsulosin, doxazosin): May cause dizziness; dose adjustment may be needed.
- Other BP medicines: Additive blood pressure lowering effect.
- Antifungals (ketoconazole, itraconazole), HIV protease inhibitors: Increase tadalafil levels – may need lower dose.
- Rifampicin, carbamazepine: Reduce tadalafil effectiveness.
- Other ED treatments: Do not combine.
Always tell your doctor about all medicines you take, including herbal and recreational drugs.
Cialis Together Side Effects FAQs
Can Cialis Together cause vision problems?
Rarely, it can cause blurred vision, eye pain, or sudden vision loss. If vision changes occur, stop the medicine and seek immediate medical help.
Is back pain a common side effect?
Yes, back pain and muscle aches are common (affect up to 1 in 10). It usually appears 12–24 hours after taking and may last a day or two.
Can I drink alcohol with Cialis Together?
Small amounts (1–2 units) are usually fine, but too much alcohol increases dizziness, headache, and may prevent erection.
What should I do if I get a prolonged erection?
If you have an erection lasting more than 4 hours, go to A&E immediately – it can cause permanent damage if untreated.
Are Cialis Together side effects worse in older men?
Dizziness is reported more often in men over 75. Diarrhoea is more common in men over 65. Always start with the recommended dose.
Need a Prescription for Cialis Together?
If you’ve checked the side effects and think Cialis Together is right for you, start a confidential online consultation with a UK‑registered doctor.
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Medical Content Manager
Nabeel is a co-founder, and medical content manager of Chemist Doctor. He works closely with our medical team to ensure the information is accurate and up-to-date.
Medical Doctor
Dr. Feroz is a GMC-registered doctor and a medical reviewer at Chemist Doctor. He oversees acute condition and urgent care guidance.
Medical Director
Usman is a co-founder, and medical director of Chemist Doctor. He leads the organisation's strategic vision, bridging clinical and operational priorities.
Review Date: 14 February 2025
Next Review: 14 August 2025
Published on: 14 February 2025
Last Updated: 14 February 2025