Front Desk: 469-391-0070
Praziquantel: Uses, Dosage, and Side Effects for Parasitic Infections
Summary of Key Points
Praziquantel is a prescription medication used to treat parasitic infections such as schistosomiasis, liver fluke infections, and tapeworm infections. It works by paralyzing the parasites, allowing the body to eliminate them naturally. This antiparasitic medication is generally well-tolerated, though it may cause side effects in some individuals. Always take Praziquantel exactly as prescribed by your healthcare provider. If you have any questions or concerns, feel free to consult one of our providers through telemedicine.
Names of Medication
US Brand Name: Biltricide (Praziquantel)
The “generic name” refers to the active ingredient in a medication, which remains consistent across all brands. In this case, Praziquantel is the generic name.
Pharmacologic Category
Anthelmintic (used to treat parasitic worm infections)
Praziquantel Dosage
Praziquantel is prescribed to treat various parasitic infections, with the dosage depending on the specific condition being addressed. Always follow your healthcare provider’s instructions carefully, and do not adjust your dose without consulting them first. If you need assistance, you can schedule a telemedicine appointment with one of our providers.
Schistosomiasis (Adults)
Dose: 20 mg/kg per dose
Frequency: 2 doses, taken 4–6 hours apart
Length of Treatment: Single day
Cysticercosis (Adults)
Dose: 50 mg/kg/day
Frequency: Divided into 3 doses per day
Length of Treatment: 15 days
Taeniasis (Adults)
Dose: 5–10 mg/kg
Frequency: Single dose
Length of Treatment: Single day
Liver Fluke Infection (Adults)
Dose: 25 mg/kg per dose
Frequency: 3 doses, taken 4–6 hours apart
Length of Treatment: Single day
Diphyllobothriasis (Adults)
Dose: 5–10 mg/kg
Frequency: Single dose
Length of Treatment: Single day
Schistosomiasis Mansoni (Adults)
Dose: 20 mg/kg per dose
Frequency: 2 doses, taken 4–6 hours apart
Length of Treatment: Single day
Schistosomiasis Japonicum (Adults)
Dose: 20 mg/kg per dose
Frequency: 2 doses, taken 4–6 hours apart
Length of Treatment: Single day
Clonorchiasis (Adults)
Dose: 25 mg/kg per dose
Frequency: 3 doses, taken 4–6 hours apart
Length of Treatment: Single day
Fascioliasis (Adults)
Dose: 25 mg/kg per dose
Frequency: 3 doses, taken 4–6 hours apart
Length of Treatment: Single day
Paragonimiasis (Adults)
Dose: 25 mg/kg per dose
Frequency: 3 doses, taken 4–6 hours apart
Length of Treatment: 2 days
Dosage Forms and Strengths
Tablet: 600 mg
Administration Instructions for Praziquantel
Praziquantel should be taken with food and a full glass of water. Swallow the tablets whole; do not chew or crush them, as they have a bitter taste. If you have difficulty swallowing the tablets, consult your healthcare provider for guidance. It’s essential to follow your doctor’s instructions closely to ensure the medication works effectively. If you miss a dose, take it as soon as you remember, but avoid doubling up on doses.
Contraindications for Praziquantel
A contraindication is a specific situation or condition where a medication should not be used because it may be harmful. It’s important to be aware of any contraindications before starting a new medication. Below are the contraindications for taking Praziquantel:
- Allergy to Praziquantel: If you have a known allergy to Praziquantel, you should not take this medication. Allergic reactions can range from mild rashes to severe, life-threatening reactions like anaphylaxis.
- Severe Liver Disease: Patients with severe liver impairment, particularly those with liver cirrhosis, should avoid Praziquantel. The liver is crucial in processing this medication, and impaired liver function can lead to toxic levels of the drug in the body.
- Ocular Cysticercosis: If you have cysticercosis (a parasitic infection) in your eyes, Praziquantel is contraindicated because the destruction of the cysts in the eye could lead to severe inflammation and potential vision loss.
- Pregnancy (First Trimester): Praziquantel is generally not recommended during the first trimester of pregnancy due to potential risks to the developing fetus. Always consult with a healthcare provider before taking any medication during pregnancy.
Drug-to-Drug Interactions
Praziquantel can interact with other medications, which may affect its effectiveness or increase the risk of side effects. Be sure to inform your healthcare provider about all the medications you are taking, including over-the-counter drugs and supplements. Below are some medications that may interact with Praziquantel:
- Rifampin (Rifadin): This antibiotic can reduce the effectiveness of Praziquantel by speeding up its breakdown in the liver.
- Carbamazepine (Tegretol): This anti-seizure medication may lower the levels of Praziquantel in your body, making it less effective.
- Phenytoin (Dilantin): Another anti-seizure drug that can decrease Praziquantel levels, reducing its effectiveness.
- Dexamethasone (Decadron): This corticosteroid can also lower the concentration of Praziquantel in the blood, diminishing its efficacy.
- Cimetidine (Tagamet): This medication, used to treat heartburn and ulcers, can increase the levels of Praziquantel in the body, potentially leading to more side effects.
Praziquantel in Pregnancy
Is it Safe to Take Praziquantel When Pregnant?
Praziquantel is generally considered safe during the second and third trimesters of pregnancy. However, it is typically avoided during the first trimester due to potential risks to the developing fetus. If you are pregnant or planning to become pregnant, it is essential to discuss the risks and benefits of Praziquantel with your healthcare provider. Our telemedicine providers are available to help you make an informed decision about your treatment options.
Praziquantel While Breastfeeding
Is it Safe to Take Praziquantel While Breastfeeding?
Praziquantel is excreted in breast milk, but only in small amounts. The World Health Organization (WHO) considers it safe for breastfeeding. However, some healthcare providers may recommend waiting 24 hours after taking the medication before resuming breastfeeding to minimize any potential exposure to your baby. Always consult your healthcare provider to determine the best course of action for you and your child.
Estimated Cost of Praziquantel
The estimated cost of a 30-day supply of Praziquantel without insurance, using a GoodRX coupon, ranges from $40 to $70. Prices may vary depending on the pharmacy and location. Be sure to check GoodRX or other discount programs for the most up-to-date pricing information.
Possible Alternatives to Praziquantel
If Praziquantel is not suitable for you, or if you are exploring alternative treatments, other options may be available depending on the specific parasitic infection. Always consult your healthcare provider before making any changes to your treatment plan. Below are some possible alternatives for conditions treated by Praziquantel:
- Schistosomiasis: Oxamniquine is an alternative medication for certain types of schistosomiasis. Additionally, lifestyle changes, such as avoiding freshwater sources in endemic areas, can help prevent reinfection.
- Cysticercosis: Albendazole is an alternative treatment for cysticercosis. In some cases, surgery may be necessary to remove cysts, especially if they cause neurological symptoms.
- Taeniasis: Niclosamide is another medication used to treat tapeworm infections. Proper food handling and thoroughly cooking meat can help prevent future infections.
- Liver Fluke Infection: Triclabendazole is an alternative treatment for liver fluke infections. Avoiding raw or undercooked freshwater fish can reduce the risk of infection.
- Diphyllobothriasis: Niclosamide is also an alternative for treating this tapeworm infection. Avoiding raw or undercooked fish can help prevent reinfection.
- Schistosomiasis Mansoni: Oxamniquine may be used as an alternative treatment for this specific type of schistosomiasis.
- Schistosomiasis Japonicum: Oxamniquine can also be used as an alternative for this type of schistosomiasis.
- Clonorchiasis: Albendazole or triclabendazole may be used as alternatives. Avoiding raw or undercooked freshwater fish can help prevent infection.
- Fascioliasis: Triclabendazole is the preferred alternative treatment for fascioliasis.
- Paragonimiasis: Triclabendazole or bithionol are alternative treatments for this lung fluke infection. Avoiding raw or undercooked crustaceans can help prevent reinfection.
Recent Updates on Praziquantel Research
Recent studies have focused on improving the accessibility and effectiveness of Praziquantel, particularly in low-income countries where parasitic infections are more common. One area of ongoing research is the development of a pediatric formulation of Praziquantel, which is easier for children to take. This is especially important as children are often disproportionately affected by parasitic infections like schistosomiasis.
Additionally, research is exploring the potential use of Praziquantel in combination with other antiparasitic medications to improve treatment outcomes. For example, combining Praziquantel with other drugs may reduce the risk of reinfection or enhance treatment effectiveness in cases of drug-resistant parasites.
It is important to stay informed about the latest research and discuss any new treatment options with your healthcare provider. If you have questions about your treatment or want to explore new options, our telemedicine providers are available to assist you.
