A) Based on Route of Administration:
Oral Tablets:
Conventional Tablets: Disintegrate and dissolve in the gastrointestinal tract (e.g., Paracetamol).
Chewable Tablets: Meant to be chewed before swallowing (e.g., Antacids).
Effervescent Tablets: Dissolve in water before administration (e.g., Vitamin C).
Sublingual Tablets: Dissolve under the tongue for rapid absorption (e.g., Nitroglycerin).
Buccal Tablets: Dissolve in the buccal pouch for slow absorption (e.g., Fentanyl).
Vaginal Tablets:
Inserted into the vagina for localized treatment (e.g., Clotrimazole).
Implantable Tablets:
Placed under the skin for long-term drug release (e.g., Hormonal implants).
B) Based on Drug Release Pattern:
Immediate-Release Tablets: Quickly disintegrate and release the drug.
Sustained-Release Tablets: Gradual release over time.
Controlled-Release Tablets: Precisely control the drug release rate.
Delayed-Release Tablets: Release drugs at a specific site in the GIT (e.g., Enteric-coated tablets).