Page 371 - كتاب تمريض نسا الاكتروني

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The injectable contraceptive is given deeply into the deltoid muscle or the upper

outer quadrant of the gluteus muscles. The injection site is not massaged to avoid

rapid absorption of the drug.

Mechanism of action: as COC (high progesterone can suppress ovulation)

Advantages of Progestin only Injectable:

• ASER "available, safe, effective (99%), reversible", long acting

• No E side effects, can be given for old, CVS, liver diseases, & lactating

women

• No special acts during sexual acts

• Protects against PID (but not STD)

• Combined Injectable: as (Progestin only) but for shorter duration (1 month)

Disadvantage

Progestin only Injectable:

• Menstrual irregularities

- Amenorrhea, oligo / hypo menorrhea: exclude pregnancy then

- Heavy bleeding or spotting

• Once started can’t be stopped & return of fertility may be delayed (9 months)

• Weight gain, no protection against STD

• Combined injectable: as Progestin only + Estrogen side effects (headache,

breast tenderness)

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