Page 20 - Pharmaceutics IV (02-06-01305)

Parenterals: Routes

Subcutaneous (SC, sub-Q)

Limitations:

• Irritating drugs and those in viscous suspension are not suitable
for SC injection, they may produce change in skin appearance or
abscess and may be painful.

• Small injection volume often puts limitations on the drugs that can
be administered by this route.

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Parenterals: Routes

Intradermal (ID)

• Injections are made into the skin layers between
the epidermal and dermal layers

• Absorption from the intradermal injection site is
slow.

• It is limited to injection of materials to detect
hypersensitivity or allergic reactions for
diagnostic purposes or desensitization.

34 17

Salma E. EL-Habashy