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Cialis

Last updated on 19/10/2021.

Overview   |   Dosage   |    Side Effects   |   Precautions  |   Tips  |   Where To Buy  

GENERIC NAME: Tadalafil

CHINESE NAME: 犀利士

DRUG CLASS: Vasodilators

SUB CLASS: Phosphodiesterase Inhibitors

USED FOR: Erectile dysfunction, Benign prostate hyperplasia

AVAILABLE DOSAGE FORMS:
– 2.5mg, 5mg, 10mg, 20mg (tablets)

What is Cialis for?

Cialis is a brand product that contains Tadalafil, which is a type of vasodilator. It works by increasing the blood flow to penis to cause a sustained erection. Cialis is therefore used to treat erectile dysfunction (impotence) in men, with an extended long duration of action of up to 36 hours.

Besides, Cialis is also used to relieve symptoms of benign prostatic hyperplasia, which include difficulty urinating, hesitancy or difficulty to start urinating, weak stream, incomplete bladder emptying, and urinary frequency and urgency in adult men.

How to use it?

Cialis is available as tablets. 

Erectile dysfunction
Start with 10 mg taken at least 30 minutes before sexual activity, and may increase up to 20 mg. 

Alternatively, you may start with 2.5 mg once daily at approximately the same time daily without regard to timing of sexual activity. The usual dose range is 2.5-5 mg/day, and use no more than once every 24 hours.

Benign prostatic hyperplasia
5 mg once daily taken at approximately the same time every day.

What are the side effects of Cialis?

Common side effects of Cialis include flushing, nausea and vomiting, headache and nasal congestion.

Who should not take Cialis?

– People who are allergic to Tadalafil or any component of the formulation
– People who are currently on nitrates
– People with recent heart attack or stroke

Pharmacist Tips:

– Cialis can cause dizziness and drowsiness. Avoid driving or operating machinery until you know how you respond to Cialis.
– Report to your healthcare professional immediately if you experience sudden visual or hearing loss, fast heartbeat or chest pain.
– Avoid alcohol use while taking this medication.
– Seek medical attention if you have prolonged erection than expected.

Common dosing schedule:
Cialis should be taken once daily with or without food, and at least 30 minutes before sexual activity OR at approximately the same time daily.

This schedule is for reference only, adjustments may be made according to individual needs.

Some common medications Cialis may interact with:
– Nitrates, e.g. Isosorbide Mononitrate, Isosorbide Dinitrate
– Nicorandil

Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.

Where to buy Cialis in Hong Kong?

In Hong Kong, Cialis is a prescription only medicine, and requires a prescription from a doctor to be purchased in a pharmacy. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health.

For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at https://www.drugoffice.gov.hk

Need more information?

For detailed information about the use of Cialis in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.

Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.