Interactions that increase your risk of side effects
Taking Chopintac with certain medications raises your risk of side effects from these drugs. Examples of these drugs include:
- Procainamide: Taking high doses of Chopintac with procainamide can cause side effects from procainamide.
- Warfarin: Taking Chopintac with warfarin may increase your risk of bleeding or blood clots. Your doctor may watch you more closely if you’re taking these drugs together.
- Midazolam and triazolam: Taking Chopintac with either of these drugs raises your risk of extreme drowsiness that can last a long time.
- Glipizide: Taking these drugs together can increase your risk for low blood sugar. You may need to test your blood sugar or test it more often when starting or stopping Chopintac.
How should I take Chopintac?
Take Chopintac exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.
Your doctor may recommend an antacid to help relieve pain. Carefully follow your doctor's directions about the type of antacid to use, and when to use it.
Do not crush, chew, or break an effervescent tablet, and do not allow it to dissolve on your tongue. The 25-milligram effervescent tablet must be dissolved in at least 1 teaspoon of water before swallowing. The150-milligram effervescent tablet should be dissolved in 6 to 8 ounces of water.
Allow the effervescent tablet to dissolve completely in the water, and then drink the entire mixture. If you are giving this medicine to a child, you may draw the liquid mixture into a medicine dropper and empty the dropper into the child's mouth.
Chopintac granules should be mixed with 6 to 8 ounces of water before drinking.
Measure liquid medicine with a special dose-measuring spoon or cup, not a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist for one.
It may take up to 8 weeks before your ulcer heals. Keep using the medication as directed and tell your doctor if your symptoms do not improve after 6 weeks of treatment.
This medication can cause unusual results with certain medical tests. Tell any doctor who treats you that you are using Chopintac.
Store at room temperature away from moisture, heat, and light.
What if I take too much?
Chopintac 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 Chopintac 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 Chopintac.
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
2. Key facts
- It's usual to take Chopintac once or twice a day.
- Some people only need to take Chopintac for a short time, when they have symptoms. Others need to take it for longer.
- You can take Chopintac 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 Chopintac.
- Chopintac is called by the brand names Zantac, Zantac 75 and Zantac 75 Relief.