Doxycycline is used for malaria prophylaxis or treatment. When it is administered for treatment of P falciparum malaria, this drug must be used as part of combination therapy (eg, typically with quinine or quinidine).
If you buy goods and are not charged the Rhode Island Sales Tax by the retailer, such as with online and out-of-state purchases, you are supposed to pay the 7% sales tax (less any foreign sales tax paid) for these items yourself as the Rhode Island Use Tax.
What is the difference between sales tax and use tax? The sales tax is imposed on retail transactions. It applies to all retail sales of tangible personal property, and in some states services, in the state. The use tax is imposed on consumers of tangible personal property that is used, consumed, or stored in this state. Consumerâs use tax applies to purchases from out-of-state vendors that are not required to collect tax on their sales. Sales and Use tax generally applies to most leases of tangible personal property.