Lisinopril 20 mg Tablets: Patient Information
Quick summary Lisinopril is an ACE inhibitor used for conditions such as high blood pressure and heart failure. This page summarises the patient leaflet in plain English, including how it is commonly taken, what...
This content is for educational purposes only and does not replace medical advice, diagnosis or treatment from a qualified healthcare professional.
Quick summary
Lisinopril is an ACE inhibitor used for conditions such as high blood pressure and heart failure. This page summarises the patient leaflet in plain English, including how it is commonly taken, what to do if a dose is missed, and when to seek medical advice.
Medical disclaimer: This article is for general information only and does not replace the official patient leaflet or advice from a doctor, pharmacist, or other qualified healthcare professional. Always follow the instructions given with your medicine.
What is lisinopril 20 mg?
Lisinopril is an ACE inhibitor that is widely prescribed for managing high blood pressure and heart failure. The exact reason for use depends on the person and the condition being treated.
This page is based on the Lisinopril 20 mg tablets Patient Information Leaflet (PIL) and is designed to make the key points easier to understand.
Is 20 mg of lisinopril a high dose?
For many adults, 20 mg is a common and effective dose. However, the dose used for any one person can vary depending on the condition being treated and how they respond to treatment.
The original leaflet content notes that doses may range from 2.5 mg to 40 mg in some cases. Your prescriber decides the dose that is appropriate for you.
How should I take lisinopril 20 mg tablets?
Lisinopril is typically taken once daily, at the same time each day. It can usually be taken with or without food.
Try to take it consistently so your routine is easier to follow. Do not change how you take it unless your healthcare professional tells you to do so.
If you have difficulty swallowing tablets, speak to a pharmacist or doctor for advice on suitable options.
How much will 20 mg lisinopril lower blood pressure?
The effect of lisinopril can vary from person to person. The leaflet content states that blood pressure may fall within a few hours, and that many people experience a meaningful reduction in blood pressure readings.
Some patients may notice a drop of around 10–15 mm Hg in systolic pressure, but this is not the same for everyone. Age, weight, other conditions, and other medicines can all affect the response.
Regular blood pressure checks are important while taking lisinopril.
What are the common side effects of lisinopril 20 mg?
Like all medicines, lisinopril can cause side effects, although not everyone gets them. The leaflet content lists the following common effects:
- Dizziness
- Headache
- Cough
- Fatigue
- Increased blood potassium levels
Some side effects are mild, but others may need urgent attention. Swelling of the face or trouble breathing can be serious and needs immediate medical help.
What changes to your dose might happen?
It is common for a prescriber to review the dose over time. The leaflet content says that blood pressure, kidney function, and treatment response may be checked during follow-up.
For adults, dose changes may be made gradually. In children, the dose is tailored to age and weight. Always follow the instructions given for the specific patient.
How long should I take lisinopril 20 mg for?
The length of treatment depends on the condition being treated and the person’s ongoing needs. Some people may need long-term treatment.
Do not stop taking lisinopril without medical advice. If you have questions about how long treatment should continue, ask your doctor or pharmacist.
What should I do if I forget a dose?
If you miss a dose, take it when you remember. If it is nearly time for the next dose, skip the missed dose and return to your usual schedule.
Do not take two doses at the same time to make up for a missed dose.
What are the risks of taking too much lisinopril?
Taking too much lisinopril can be dangerous. The leaflet content warns that overdose may cause very low blood pressure, kidney problems, or electrolyte imbalance.
Possible signs may include dizziness or fainting. If an overdose is suspected, seek urgent medical help straight away.
Important safety information
Lisinopril can interact with other medicines, including some diuretics, potassium supplements, and certain anti-inflammatory medicines. Always tell your healthcare professional about all medicines and supplements you use.
The leaflet content also states that lisinopril is generally not suitable during pregnancy because it can harm the developing baby. If pregnancy is possible or planned, speak to a healthcare professional promptly.
Store tablets at room temperature, away from moisture and heat, and keep them out of the reach of children.
Safety reminder: If you have severe side effects, signs of an allergic reaction, or symptoms that worry you, get medical advice urgently. For routine questions about your medicine, speak to a pharmacist or doctor and check the official leaflet supplied with the product.
Frequently asked questions
▸ How quickly does lisinopril start to work?
The leaflet content says lisinopril can begin lowering blood pressure within about an hour, with peak effects later. Some people may need longer to see the full benefit.
▸ Can lisinopril interact with other medicines?
Yes. The content mentions possible interactions with diuretics, potassium supplements, and some anti-inflammatory medicines. Share a full medicine list with your healthcare professional.
▸ Is lisinopril safe during pregnancy?
The leaflet content says lisinopril is generally not suitable during pregnancy because it may harm the developing fetus. Speak to a healthcare professional if pregnancy is possible or planned.
▸ What should I do if I get side effects?
Contact a healthcare professional for advice. Mild effects may settle, but serious symptoms such as swelling of the face or breathing difficulty need urgent medical attention.
▸ How should lisinopril tablets be stored?
Store them at room temperature, away from moisture and heat, and keep them out of reach of children. Check the expiry date and dispose of expired tablets safely.
▸ What if I am unsure about my dose?
Do not guess or change the dose yourself. Check the prescription label, the official leaflet, or ask a pharmacist or doctor to confirm the correct instructions.
Medical disclaimer
This content is for educational purposes only. It should not be used as a substitute for professional medical advice, diagnosis or treatment. Always ask a doctor, pharmacist or qualified healthcare professional before starting, stopping or changing any medicine.
Sources and verification
The following sources or official references are listed to support verification of the medicine information discussed in this article.
- NHS: Lisinopril
- Electronic Medicines Compendium (emc): Lisinopril patient leaflet
- MedlinePlus: Lisinopril
To improve this article with specific references, add a custom field named _aio_sources in the post editor and write one source per line using: Source title|Source URL.
Medicine information can change and may vary depending on country, product formulation, patient history and professional guidance. Always check official medicine information and ask a healthcare professional for personal medical questions.