Dosage forms that do not pass through the gastrointestinal tract include injectable dosage forms, dermal dosage forms, mucosal dosage forms, etc., which need to be analyzed specifically. 1. Injectable dosage forms: These include intravenous injection, subcutaneous injection, intramuscular injection and other injection routes, and the drug is absorbed through the blood and muscle to play a role. Intravenous injection is the most common way of drug delivery. 2. Skin drug delivery: such as topical rinses, ointments, patches, etc., usually act locally. 3. Mucosal administration: such as eye drops, nasal wash, sublingual tablets, etc. This type of dosage form is absorbed through the mucous membrane. This type of dosage form is absorbed through the mucous membrane and exerts its effect. Each dosage form of drugs have their own way of use, can not be used without authorization, should be used under the guidance of a doctor.