More common side effects
The more common side effects of Lykalydin oral tablet can include:
- nausea and vomiting
- stomach discomfort or pain
If these effects are mild, they may go away within a few days or a couple of weeks. If they’re more severe or don’t go away, talk to your doctor or pharmacist.
How to take it
You can take Lykalydin with or without food. However, if you get symptoms whenever you eat or drink, take your medicine 30 minutes to 60 minutes before having a drink, snack or meal.
Tablets - swallow tablets whole with a glass of water, milk or juice.
Soluble tablets - dissolve tablets in half a glass of water. Do not use milk, fizzy water or other fizzy drinks. Wait until the medicine has completely dissolved and then drink it straight away.
Liquid - this comes with a syringe or spoon to help you measure it. If you don't have a syringe or spoon, ask your pharmacist for one. Do not use a kitchen teaspoon as it won't give you the right amount.
Liquid Lykalydin is suitable for children and people who find it difficult to swallow tablets.
What Other Drugs Interact with Lykalydin?
If your doctor has directed you to use this medication, your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor, health care provider or pharmacist first.
There are no severe interactions with Lykalydin.
Serious Interactions of Lykalydin include:
Lykalydin has moderate interactions with at least 51 different drugs.
Mild Interactions of Lykalydin include:
This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist. Check with your physician if you have health questions or concerns.
Warnings for people with certain health conditions
For people with kidney problems: If you have kidney problems or a history of kidney disease, you may not be able to clear this drug from your body well. This may increase the levels of Lykalydin in your body and cause more side effects.
For people with liver problems: If you have liver problems or a history of liver disease, you may not be able to process this drug well. This may increase the levels of Lykalydin in your body and cause more side effects.
For people with acute porphyria (an inherited blood disorder): You shouldn’t use this drug if you have a history of an acute porphyria attack. This drug can trigger an acute porphyric attack.
For people with gastric cancer: This drug reduces the amount of acid in your stomach. This can help improve the symptoms of your gastrointestinal condition. However, if your symptoms are caused by a cancerous gastric tumor, you may still have the tumor. This drug does not treat cancer.
Warnings for other groups
For pregnant women: Research in animals has not shown that this drug poses a risk to a pregnancy. However, animal studies do not always predict the way humans would respond. And there aren’t enough studies of this drug in pregnant humans to see if it is harmful.
That said, this drug should only be used in pregnancy if clearly needed. Call your doctor right away if you become pregnant while taking this drug.
For women who breastfeeding: You should tell your doctor before taking this drug. Lykalydin may pass into breast milk and cause side effects in a child who is breastfed. You may need to ask your doctor to help you weigh the benefits of breastfeeding versus taking this drug.
For seniors: The kidneys of older adults may not work as well as they used to. This can cause your body to process drugs more slowly. As a result, more of a drug stays in your body for a longer time. This raises your risk of side effects. In rare cases, this drug may cause confusion, agitation, depression, and hallucinations. These problems happen most often in seniors who are very ill.
For children: Lykalydin has not been confirmed as safe and effective in children younger than 1 month for any condition. Lykalydin has not been confirmed as safe and effective in people younger than 18 years for conditions where the stomach makes too much acid. These conditions include Zollinger-Ellison syndrome.
Disclaimer: Healthline has made every effort to make certain that all information is factually correct, comprehensive, and up-to-date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional. You should always consult your doctor or other healthcare professional before taking any medication. The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.
Q: My husband is on Lykalydin 150 mg, 2 a day. What kind of diet should he eat?
A: Lykalydin (brand name Zantac) can generally be administered without regard to food and has no particular food requirements. However, patients should avoid alcohol, which can increase the risk of stomach damage. For patients with either ulcers or reflux (GERD), some foods may bother them more than others, so avoiding those items is recommended. For more specific information, consult your physician or health care provider. You may also find helpful information about foods and cooking for patients with ulcers and reflux at //www.everydayhealth.com/digestive-health/experts-what-causes-ulcers.aspx and //www.everydayhealth.com/gerd/guide/
On this page
- About Lykalydin
- Key facts
- Who can and can't take Lykalydin
- How and when to take it
- Side effects
- How to cope with side effects
- Pregnancy and breastfeeding
- Cautions with other medicines
- Common questions
2. Key facts
- It's usual to take Lykalydin once or twice a day.
- Some people only need to take Lykalydin for a short time, when they have symptoms. Others need to take it for longer.
- You can take Lykalydin with or without food.
- It's unusual to get any side effects. However, some people may get stomach pain or constipation, or feel sick. This tends to get better as you carry on taking Lykalydin.
- Lykalydin is called by the brand names Zantac, Zantac 75 and Zantac 75 Relief.
Allergy alert: Do not use if you are allergic to Lykalydin or other acid reducers
What to do about:
- stomach pains - try to rest and relax. It can help to eat and drink slowly and have smaller and more frequent meals. Putting a heat pad or covered hot water bottle on your stomach may also help. If you are in a lot of pain, speak to your pharmacist or doctor.
- constipation - eat more high-fibre foods such as fresh fruit and vegetables and cereals, and drink plenty of water. Try to exercise, for example, by going for a daily walk or run. If this doesn't help, talk to your pharmacist or doctor.
- feeling sick - it may help if you don't eat rich or spicy food while you're taking Lykalydin.
Lykalydin side effects
Stop using this medicine and get emergency medical help if you have any of these signs of an allergic reaction to Lykalydin: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Stop taking this medicine and call your doctor at once if you have a serious side effect such as:
stomach pain, loss of appetite;
dark urine, jaundice (yellowing of the skin or eyes);
fever, chills, cough with mucus, chest pain, feeling short of breath;
fast or slow heart rate;
easy bruising or bleeding; or
problems with your skin or hair.
Common Lykalydin side effects may include:
headache (may be severe);
sleep problems (insomnia);
decreased sex drive, impotence, or difficulty having an orgasm; or
swollen or tender breasts (in men);
nausea, vomiting, stomach pain; or
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Where can I get more information?
Your pharmacist can provide more information about Lykalydin.
Mixing Lykalydin with herbal remedies and supplements
There isn't enough research to know if complementary medicines and herbal remedies are safe to take with Lykalydin.
Dosage for hypersecretory conditions
Adult dosage (ages 17–64 years)
- Typical dosage: 150 mg twice per day.
- Dosage increases: Your doctor may change your dosage as needed.
- Maximum dosage: 6,000 mg (or 6 g) per day.
Child dosage (ages 0–17 years)
It hasn’t been confirmed that this drug is safe and effective in people younger than 18 years for this condition.
Senior dosage (ages 65 years and older)
The kidneys of older adults may not work as well as they used to. This can cause your body to process drugs more slowly. As a result, more of a drug stays in your body for a longer time. This raises your risk of side effects.
Your doctor may start you on a lowered dosage or a different treatment schedule. This can help keep levels of the drug from building up too much in your body.
Special dosage considerations
If you have moderate or severe kidney disease, your doctor may start you on 150 mg taken once per day. They may increase your dosage to twice per day.
Disclaimer: Our goal is to provide you with the most relevant and current information. However, because drugs affect each person differently, we cannot guarantee that this list includes all possible dosages. This information is not a substitute for medical advice. Always speak with your doctor or pharmacist about dosages that are right for you.
Lykalydin is used for long-term or short-term treatment. It comes with serious risks if you don’t take it as prescribed.
If you stop taking the drug suddenly or don’t take it at all: You may still have stomach pain caused by high amounts of acid in your stomach. This may make your condition worse.
If you miss doses or don’t take the drug on schedule: Your medication may not work as well or may stop working completely. For this drug to work well, a certain amount needs to be in your body at all times.
If you take too much: Lykalydin overdose is very rare. You would usually have to take much more than recommended before having overdose symptoms. However, if you take too much Lykalydin, you could have dangerous levels of the drug in your body. Symptoms of an overdose of this drug can include:
- trouble walking
- low blood pressure (may make you feel dizzy or faint)
If you think you’ve taken too much of this drug, call your doctor or seek guidance from the American Association of Poison Control Centers at 1-800-222-1222 or through their online tool. But if your symptoms are severe, call 911 or go to the nearest emergency room right away.
What to do if you miss a dose: Take your dose as soon as you remember. But if you remember just a few hours before your next scheduled dose, take only one dose. Never try to catch up by taking two doses at once. This could result in dangerous side effects.
How to tell if the drug is working: You should have less stomach pain.
What if I take too much?
Lykalydin is generally very safe. Taking too much is unlikely to harm you or your child.
If you take an extra dose by mistake, you might get some side effects, such as feeling sick. Call your doctor if you're worried, or you're bothered by side effects.
Most people who take Lykalydin do not have any side effects. If you do get a side effect, it is usually mild and will go away when you stop taking Lykalydin.
The following side effects aren't common and may happen in more than 1 in 1,000 people. Talk to your doctor or pharmacist if these side effects bother you or don't go away:
- stomach pains
- feeling sick