Interactions
Some other medications and griseofulvin may interact. Before taking griseofulvin, discuss with your doctor any other medications you may be taking.
Other medicines that may interact with griseofulvin include the following:
1. Blood thinners: Warfarin (Coumadin), among other blood thinners, can have an increased effect when taken with griseofulvin. Consult your doctor before taking griseofulvin if you are taking a blood thinner.
2. Immunosuppressive medications: Griseofulvin can intensify the effects of immunosuppressive drugs. Before taking griseofulvin, consult your doctor if you are taking an immunosuppressant.
3. Birth control pills: Griseofulvin can reduce the effectiveness of birth control pills. Before taking griseofulvin, discuss with your doctor if you are taking birth control pills. You might have to use an additional method of birth control.
4. Antidepressants: Some antidepressants, including fluoxetine (Prozac) and paroxetine (Paxil), can interact with griseofulvin. Before taking griseofulvin, discuss your antidepressant use with your doctor.
5. Anticonvulsants:Griseofulvin can intensify the effects of anticonvulsants like phenytoin (Dilantin) and carbamazepine (Tegretol), which are used to treat seizures. Before taking griseofulvin, discuss with your doctor if you are currently taking any seizure medications.
6. Barbiturate drugs: Drugs containing barbiturates, such as phenobarbital, may interact with griseofulvin. Before taking griseofulvin, consult your doctor if you are currently taking a barbiturate medication.
7. Cholesterol-lowering drugs: Griseofulvin may interact with drugs that lower cholesterol, including simvastatin (Zocor) and lovastatin (Mevacor). Before taking griseofulvin, consult your doctor if you are taking any cholesterol-lowering medication.
8. Drugs for HIV/AIDS: Grizeofulvin may interact with drugs for HIV/AIDS such as ritonavir (Norvir). Before taking griseofulvin, discuss with your doctor if you are taking any HIV/AIDS medications.
9. Cancer chemotherapy drugs: Some cancer chemotherapy drugs, including vincristine (Oncovin) and vinblastine (Velban), can interact with griseofulvin. Before taking griseofulvin, consult your doctor if you are taking a cancer chemotherapy drug.
10. Other drugs:Griseofulvin may also interact with other drugs, including the antifungal ketoconazole (Nizoral) and the antibiotic ciprofloxacin (Cipro). Before taking griseofulvin, discuss with your doctor any other medications you may be taking.