Check chest-pain medicines
Tell the healthcare professional if you use nitroglycerin, isosorbide or any medicine described as a nitrate.
Patient Information
HonniHil® contains tadalafil 20 mg and is a prescription medicine used in the management of erectile dysfunction.
This page provides practical information about responsible use, important interactions, possible side effects and when to seek professional medical help.
Use HonniHil® only as prescribed by a qualified healthcare professional.
Before using HonniHil®
Treatment decisions should be based on your health, symptoms and other medicines—not on self-diagnosis.
Tell your doctor or pharmacist about:
Critical safety information
Combining tadalafil with nitrates can cause a dangerous fall in blood pressure. Nitrates may be prescribed for chest pain or angina and may also be present in some recreational substances.
Tell the healthcare professional if you use nitroglycerin, isosorbide or any medicine described as a nitrate.
Do not use HonniHil® with another erectile-dysfunction medicine unless a qualified prescriber has specifically instructed you.
Speak with a doctor before treatment if sexual activity has been restricted because of a cardiovascular condition.
Do not use the product if you have previously had an allergic reaction to tadalafil or another ingredient in the medicine.
The final contraindication wording must be checked against the current locally approved HonniHil® patient leaflet or prescribing information.
Medicines and interactions
Some medicines may change the effect of tadalafil or increase the risk of low blood pressure and other adverse effects.
Contraindicated because the combination may cause a dangerous fall in blood pressure.
Alpha blockers and antihypertensive medicines may increase the blood-pressure-lowering effect.
Some medicines can increase or reduce tadalafil exposure. Your prescriber may need to review suitability or dosing.
Heavy alcohol consumption may increase dizziness, headache or low-blood-pressure effects.
Bring a full medicine and supplement list to your appointment. Do not stop prescribed treatment without medical advice.
Responsible use
Your doctor’s instructions and the approved patient leaflet take priority over information from friends, social media or unverified sellers.
Do not change the dose or frequency without speaking with the prescriber.
Another person may have a health condition or interaction that makes tadalafil unsuitable.
The medicine supports the natural erectile response; it does not automatically produce an erection.
Avoid unverified websites, social-media sellers and informal markets where counterfeit or undeclared ingredients may be present.
Possible side effects
Not everyone experiences side effects. The approved patient leaflet should provide the final local list and frequency information.
Commonly reported with tadalafil
Contact a healthcare professional if a side effect is persistent, severe or concerning.
Seek urgent medical help
Tell emergency healthcare personnel when tadalafil was taken and which other medicines you use.
Patient questions
No. Tadalafil does not automatically produce an erection. Sexual stimulation is required. A prolonged erection lasting more than four hours requires urgent medical attention.
Do not combine erectile-dysfunction medicines unless a qualified prescriber has specifically instructed you to do so.
No. Tadalafil and nitrates must not be combined because of the risk of a dangerous fall in blood pressure.
Heavy alcohol use may increase dizziness, headache and low blood pressure. Ask a doctor or pharmacist for advice based on your health and medicines.
HonniHil® should be used only for the approved indication stated in the current product information and prescription. It should not be assumed to treat a different sexual-health condition.
Contact a healthcare professional. Seek urgent medical help for chest pain, severe allergy, sudden vision or hearing changes, or an erection lasting longer than four hours.
Use verified pharmacy channels and a valid prescription. Unverified sellers may supply counterfeit, incorrectly stored or undeclared products.
Follow your prescription and the current approved patient leaflet. Dosage instructions are not reproduced here because they must match the locally approved product information.
Patient support and reporting
Medical questions, side-effect reports and product-quality concerns should not all be sent through the same generic form.
Ask a product or medicine-safety question that is not an emergency.
Open Medical Enquiry →Report a suspected side effect or safety concern linked to the product.
Report an Adverse Event →Report damaged packaging, suspected counterfeit product or another quality concern.
Submit a Quality Complaint →Download the current approved patient leaflet when it is available.
Download Patient Leaflet →
Professional guidance
Speak with a qualified doctor or pharmacist. They can review your medical history, other medicines and individual risk factors.
Medical information notice: This page does not replace the approved patient information leaflet, a prescription or advice from a qualified healthcare professional.