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The following important adverse reactions observed with the use of Depo-Provera CI are discussed in greater detail in the Warnings and Precautions section (5):

  • Loss of Bone Mineral Density [see WARNINGS AND PRECAUTIONS]
  • Thromboembolic disease [see WARNINGS AND PRECAUTIONS]
  • Breast Cancer [see WARNINGS AND PRECAUTIONS]
  • Anaphylaxis and Anaphylactoid Reactions [see WARNINGS AND PRECAUTIONS]
  • Bleeding Irregularities[see WARNINGS AND PRECAUTIONS]
  • Weight Gain [see WARNINGS AND PRECAUTIONS]

Clinical Trials Experience

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

In the two clinical trials with Depo-Provera CI, over 3,900 women, who were treated for up to 7 years, reported the following adverse reactions, which may or may not be related to the use of Depo-Provera CI. The population studied ranges in age from 15 to 51 years, of which 46% were White, 50% Non-White, and 4.9% Unknown race. The patients received 150 mg Depo-Provera CI every 3-months (90 days). The median study duration was 13 months with a range of 1-84 months. Fifty eight percent of patients remained in the study after 13 months and 34% after 24 months.

Table 1 : Adverse Reactions that Were Reported by More than 5% of Subjects

Body System* Adverse Reactions (Incidence (%))
Body as a Whole Headache (16.5%) Abdominal pain/discomfort (11.2%)
Metabolic/Nutritional Increased weight > 10lbs at 24 months (37.7%)
Nervous Nervousness (10.8%) Dizziness (5.6%) Libido decreased (5.5%)
Urogenital Menstrual irregularities: (bleeding (57.3% at 12 months, 32.1% at 24 months) amenorrhea (55% at 12 months, 68% at 24 months)
* Body System represented from COSTART medical dictionary.

Table 2 :Adverse Reactions that Were Reported by between 1 and 5% of Subjects

Body System* Adverse Reactions (Incidence (%))
Body as a Whole Asthenia/fatigue (4.2%) Backache (2.2%) Dysmenorrhea (1.7%) Hot flashes (1.0%)
Digestive Nausea (3.3%) Bloating (2.3%)
Metabolic/Nutritional Edema (2.2%)
Musculoskeletal Leg cramps (3.7%) Arthralgia (1.0%)
Nervous Depression (1.5%) Insomnia (1.0%)
Skin and Appendages Acne (1.2%) No hair growth/alopecia (1.1%) Rash (1.1%)
Urogenital Leukorrhea (2.9%) Breast pain (2.8%) Vaginitis (1.2%)
* Body System represented from COSTART medical dictionary.

Adverse reactions leading to study discontinuation in2% of subjects: bleeding (8.2%), amenorrhea (2.1%), weight gain (2.0%)

Post-marketing Experience

The following adverse reactions have been identified during post approval use of Depo-Provera CI. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

There have been cases of osteoporosis including osteoporotic fractures reported post-marketing in patients taking Depo-Provera CI.

Table 3 : Adverse Reactions Reported during Post-Marketing Experience

Body System* Adverse Reactions
Body as a Whole Chest pain, Allergic reactions including angioedema, Fever, Pain at injection site, Chills, Axillary swelling
Cardiovascular Syncope, Tachycardia, Thrombophlebitis, Deep vein thrombosis, Pulmonary embolus, Varicose veins
Digestive Changes in appetite, Gastrointestinal disturbances, Jaundice, Excessive thirst, Rectal bleeding
Hematologic and Lymphatic Anemia, Blood dyscrasia
Musculoskeletal Osteoporosis
Nervous Paralysis, Facial palsy, Paresthesia, Drowsiness
Respiratory Dyspnea and asthma, Hoarseness
Skin and Appendages Hirsutism, Excessive sweating and body odor, Dry skin, Scleroderma
Urogenital Cervical cancer, Breast cancer, Lack of return to fertility, Unexpected pregnancy, Prevention of lactation, Changes in breast size, Breast lumps or nipple bleeding, Galactorrhea, Melasma, Chloasma, Increased libido, Uterine hyperplasia, Genitourinary infections, Vaginal cysts, Dyspareunia
* Body System represented from COSTART medical dictionary.